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HUS726020ALA610
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HGST HUS726020ALA610 Service Manual

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Models:
Hard disk drive specifications
HGST Ultrastar 7K6000
3.5 inch Serial ATA hard disk drive
Revision 1.0 18 August 2015
HGST Hard Disk Drive Specification
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Revision 1.0 (18 August 2015)
The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: HGST a Western Digital company PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express or implied warranties in certain transactions, therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. HGST may make improvements or changes in any products or programs described in this publication at any time.
It is possible that this publication may contain reference to, or information about, HGST products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that HGST intends to announce such HGST products, programming, or services in your country.
Technical information about this product is available by contacting your local HGST representative or on the Internet at
www.hgst.com/support,
HGST may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents.
© 2015 HGST, Inc. All rights reserved.
HGST, a Western Digital company 3403 Yerba Buena Road San Jose, CA 95135 Produced in the United States
08/15
Ultrastar™ is a trademark of HGST, Inc. and its affiliates in the United States and/or other countries. HGST trademarks are authorized for use in countries and jurisdictions in which HGST has the right to use, market and
advertise the brands. Other product names are trademarks or registered trademarks of their respective owners. One GB is equal to one billion bytes and one TB equals 1,000 GB (one trillion bytes) when referring to hard drive capacity.
Accessible capacity will vary from the stated capacity due to formatting and partitioning of the hard drive, the computer’s
operating system, and other factors. References in this publication to HGST products, programs or services do not imply that HGST intends to make these
available in all countries in which HGST operates. Product information is provided for information purposes only and does not constitute a warranty. Information is true as of the date of publication and is subject to change. Actual results may vary. This publication is for
general guidance only. Photographs may show design models. 18 August 2015
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Table of contents
1 General ................................................................................................................................................................ 14
1.1 Introduction ..................................................................................................................................... 14
1.2 Glossary ........................................................................................................................................... 14
1.3 General caution ............................................................................................................................... 15
1.4 References ........................................................................................................................................ 15
2 General features .................................................................................................................................................. 16
Part 1. Functional specification ....................................................................................................................... 17
3 Fixed disk subsystem description........................................................................................................................ 18
3.1 Control Electronics ......................................................................................................................... 18
3.2 Head disk assembly ........................................................................................................................ 18
3.3 Actuator ........................................................................................................................................... 18
4 Drive characteristics ............................................................................................................................................ 19
4.1 Default logical drive parameters ................................................................................................... 19
4.2 Data sheet ........................................................................................................................................ 19
4.3 World Wide Name Assignment ...................................................................................................... 20
4.4 Drive organization .......................................................................................................................... 20
4.4.1 Drive Format ............................................................................................................................ 20
4.4.2 Cylinder allocation................................................................................................................... 20
4.5 Performance characteristics ........................................................................................................... 21
4.5.1 Command overhead ................................................................................................................. 21
4.5.2 Mechanical positioning ............................................................................................................ 22
4.5.3 Drive ready time ...................................................................................................................... 22
4.5.4 Operating modes ...................................................................................................................... 23
5 Defect flagging strategy ....................................................................................................................................... 24
5.1 Shipped format ................................................................................................................................ 24
6 Specification ........................................................................................................................................................ 25
6.1 Electrical interface .......................................................................................................................... 25
6.1.1 Connector location ................................................................................................................... 25
6.1.2 Signal definition....................................................................................................................... 26
6.1.3 Out of band signaling .............................................................................................................. 27
6.2 Environment .................................................................................................................................... 28
6.2.1 Temperature and humidity ..................................................................................................... 28
6.2.2 Corrosion test ........................................................................................................................... 29
6.2.3 Atmospheric condition ............................................................................................................. 29
6.3 DC power requirements.................................................................................................................. 30
6.3.1 Input voltage ............................................................................................................................ 30
6.3.2 Power supply current (typical1) .............................................................................................. 31
6.3.3 Power supply generated ripple at drive power connector ..................................................... 33
6.3.4 Power Consumption Efficiency ............................................................................................... 33
6.4 Reliability ........................................................................................................................................ 34
6.4.1 Data integrity ........................................................................................................................... 34
6.4.2 Cable noise interference .......................................................................................................... 34
6.4.3 Load/Unload ............................................................................................................................. 34
6.4.4 Start/stop cycles ....................................................................................................................... 34
6.4.5 Preventive maintenance .......................................................................................................... 34
6.4.6 Data reliability ......................................................................................................................... 34
6.4.7 Required Power-Off Sequence ................................................................................................ 34
6.5 Mechanical specifications ............................................................................................................... 35
6.5.1 Physical dimensions ................................................................................................................ 35
6.5.2 Connector locations ................................................................................................................. 39
6.5.3 Drive mounting ........................................................................................................................ 39
6.5.4 Heads unload and actuator lock ............................................................................................. 39
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6.6 Vibration and shock ........................................................................................................................ 40
6.6.1 Operating vibration ................................................................................................................. 40
6.6.2 Nonoperating vibration ........................................................................................................... 41
6.6.3 Operating shock ....................................................................................................................... 41
6.6.4 Nonoperating shock ................................................................................................................. 41
6.6.5 Nonoperating Rotational shock .............................................................................................. 42
6.7 Acoustics .......................................................................................................................................... 43
6.8 Identification labels ........................................................................................................................ 43
6.9 Safety ............................................................................................................................................... 44
6.9.1 UL and CSA standard conformity .......................................................................................... 44
6.9.2 German Safety Mark ............................................................................................................... 44
6.9.3 Flammability ............................................................................................................................ 44
6.9.4 Safe handling ........................................................................................................................... 44
6.9.5 Substance restriction requirements ....................................................................................... 44
6.9.6 Secondary circuit protection ................................................................................................... 44
6.10 Electromagnetic compatibility ....................................................................................................... 45
6.10.1 CE Mark ................................................................................................................................... 45
6.10.2 C-Tick Mark ............................................................................................................................. 45
6.10.3 BSMI Mark .............................................................................................................................. 45
6.10.4 KC Mark ................................................................................................................................... 45
Part 2. Interface Specification .......................................................................................................................... 46
7 General ................................................................................................................................................................ 47
7.1 Introduction ..................................................................................................................................... 47
7.2 Terminology ..................................................................................................................................... 47
7.3 Deviations From Standard ............................................................................................................. 47
8 Registers ............................................................................................................................................................. 48
8.1 Alternate Status Register............................................................................................................... 48
8.2 Command register .......................................................................................................................... 48
8.3 Cylinder High Register ................................................................................................................... 48
8.4 Cylinder Low Register .................................................................................................................... 49
8.5 Device Control Register .................................................................................................................. 49
8.6 Device/Head Register ...................................................................................................................... 49
8.7 Error Register ................................................................................................................................. 50
8.8 Features Register ............................................................................................................................ 50
8.9 Sector Count Register ..................................................................................................................... 50
8.10 Sector Number Register ................................................................................................................. 50
8.11 Status Register ................................................................................................................................ 51
9 General Operation Descriptions .......................................................................................................................... 52
9.1 Reset Response ................................................................................................................................ 52
9.1.1 Register Initialization ............................................................................................................. 53
9.2 Diagnostic and Reset considerations ............................................................................................. 54
9.3 Sector Addressing Mode ................................................................................................................. 54
9.3.1 Logical CHS Addressing Mode ............................................................................................... 54
9.3.2 LBA Addressing Mode ............................................................................................................. 54
9.4 Power Management Feature .......................................................................................................... 55
9.4.1 Power Mode .............................................................................................................................. 55
9.4.2 Power Management Commands ............................................................................................. 56
9.4.3 Standby timer .......................................................................................................................... 56
9.4.4 Interface Capability for Power Modes .................................................................................... 56
9.5 SMART Function ............................................................................................................................ 57
9.5.1 Attributes ................................................................................................................................. 57
9.5.2 Attribute values ....................................................................................................................... 57
9.5.3 Attribute thresholds ................................................................................................................ 57
9.5.4 Threshold exceeded condition ................................................................................................. 57
9.5.5 SMART commands .................................................................................................................. 57
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9.5.6 Off-line Read Scanning ........................................................................................................... 57
9.5.7 Error Log .................................................................................................................................. 57
9.5.8 Self-test ..................................................................................................................................... 58
9.6 Security Mode Feature Set ............................................................................................................. 59
9.6.1 Security mode........................................................................................................................... 59
9.6.2 Security Level .......................................................................................................................... 59
9.6.3 Password .................................................................................................................................. 59
9.6.4 Operation example .................................................................................................................. 60
9.6.5 Command Table ....................................................................................................................... 63
9.7 Host Protected Area Feature ......................................................................................................... 66
9.7.1 Example for operation (In LBA mode) ................................................................................... 66
9.7.2 Security extensions .................................................................................................................. 67
9.8 Write Cache Function ..................................................................................................................... 68
9.9 Reassign Function ........................................................................................................................... 68
9.9.1 Auto Reassign Function .......................................................................................................... 68
9.10 Power-up in Standby feature set ................................................................................................... 69
9.11 Advanced Power Management feature set (APM) ........................................................................ 69
9.12 48-bit Address Feature Set ............................................................................................................ 69
9.13 Streaming feature Set .................................................................................................................... 70
9.13.1 Streaming commands .............................................................................................................. 70
9.14 SATA BIST (Built-in Self Test) ...................................................................................................... 72
9.15 SATA Interface Power Management ............................................................................................. 72
9.16 Software Setting Preservation ....................................................................................................... 73
9.16.1 COMRESET Preservation Requirements .............................................................................. 73
9.17 Serial ATA Optional Features ....................................................................................................... 74
9.17.1 Asynchronous Signal Recovery ............................................................................................... 74
9.17.2 Device Power Connector Pin 11 Definition ............................................................................ 74
9.17.3 Phy Event Counters ................................................................................................................ 74
9.17.4 NCQ Queue Management (63h) ............................................................................................. 78
9.17.5 Rebuild Assist .......................................................................................................................... 82
9.18 SCT Command Transport feature Set ........................................................................................... 84
9.18.1 Overview ................................................................................................................................... 84
9.18.2 SCT Command Protocol .......................................................................................................... 85
9.18.3 SCT Command Set .................................................................................................................. 93
9.19 Extended Power Conditions (EPC) feature ................................................................................. 101
9.19.1 Power conditions .................................................................................................................... 101
9.19.2 Power condition timers .......................................................................................................... 102
9.19.3 Interaction with resets, commands and other features ...................................................... 102
9.20 Sanitize Device feature set ........................................................................................................... 103
9.20.1 Overview ................................................................................................................................. 103
9.20.2 Sanitize Device Feature ........................................................................................................ 104
9.20.3 Sanitize Device state machine .............................................................................................. 105
10 Command Protocol ............................................................................................................................................ 107
10.1 PIO Data In commands ................................................................................................................ 107
10.2 PIO Data Out commands ............................................................................................................. 107
10.3 Non-Data commands .................................................................................................................... 108
10.4 DMA Data In commands and DMA Data Out commands ......................................................... 109
10.5 First-party DMA commands ........................................................................................................ 109
11 Command Descriptions ..................................................................................................................................... 110
11.1 Check Power Mode (E5h/98h) ...................................................................................................... 114
11.2 Configure Stream (51h) ................................................................................................................ 115
11.3 Device Configuration Overlay (B1h) ........................................................................................... 117
11.3.1 Device Configuration Restore (Subcommand C0h) ............................................................. 118
11.3.2 Device Configuration Freeze Lock (Subcommand C1h) ..................................................... 118
11.3.3 Device Configuration Identify (Subcommand C2h) ............................................................ 118
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11.3.4 Device Configuration Set (Subcommand C3h) .................................................................... 118
11.4 Download Microcode (92h) ........................................................................................................... 121
11.5 Download Microcode DMA (93h) ................................................................................................. 123
11.6 Execute Device Diagnostic (90h).................................................................................................. 125
11.7 Flush Cache (E7h)......................................................................................................................... 126
11.8 Flush Cache Ext (EAh) ................................................................................................................. 127
11.9 Format Track (50h) ....................................................................................................................... 128
11.10 Format Unit (F7h) ........................................................................................................................ 129
11.11 Identify Device (ECh) ................................................................................................................... 130
11.12 Idle (E3h/97h) ................................................................................................................................ 141
11.13 Idle Immediate (E1h/95h) ............................................................................................................ 142
11.14 Initialize Device Parameters (91h) .............................................................................................. 143
11.15 NCQ Queue Management (63h) ................................................................................................... 144
11.15.1 Abort NCQ Queue Subcommand (0h) .................................................................................. 145
11.15.2 Deadline handling Subcommand (1h) .................................................................................. 147
11.16 Read Buffer (E4h) ......................................................................................................................... 149
11.17 Read Buffer DMA (E9h) ............................................................................................................... 150
11.18 Read DMA(C8h/C9h) .................................................................................................................... 151
11.19 Read DMA Ext (25h) ..................................................................................................................... 153
11.20 Read FPDMA Queued (60h) ......................................................................................................... 155
11.21 Read Log Ext (2Fh) ....................................................................................................................... 157
11.21.1 General Purpose Log Directory ............................................................................................ 159
11.21.2 Extended Comprehensive SMART Error log ....................................................................... 160
11.21.3 Extended Self-test log sector ................................................................................................. 163
11.21.4 Power Conditions log ............................................................................................................. 164
11.21.5 Queued Error Log .................................................................................................................. 167
11.21.6 Read Stream Error log .......................................................................................................... 168
11.21.7 Write Stream Error log ......................................................................................................... 169
11.21.8 Identify Device Data log ........................................................................................................ 170
11.22 Read Log DMA Ext(47h) .............................................................................................................. 180
11.23 Read Multiple (C4h)...................................................................................................................... 181
11.24 Read Multiple Ext (29h) ............................................................................................................... 182
11.25 Read Native Max Address (F8h) .................................................................................................. 184
11.26 Read Native Max Address Ext (27h) ........................................................................................... 185
11.27 Read Sector(s) (20h/21h) ............................................................................................................... 186
11.28 Read Sector(s) Ext (24h) ............................................................................................................... 187
11.29 Read Stream DMA Ext(2Ah) ........................................................................................................ 188
11.30 Read Stream Ext (2Bh)................................................................................................................. 191
11.31 Read Verify Sector(s) (40h/41h) ................................................................................................... 194
11.32 Read Verify Sector(s) Ext (42h) ................................................................................................... 195
11.33 Recalibrate (1xh) ........................................................................................................................... 196
11.34 Request Sense Data Ext (0Bh) ..................................................................................................... 197
11.35 Sanitize Device Feature Set (B4h) ............................................................................................... 199
11.35.1 Crypto Scramble Ext Command (feature: 0011h) ............................................................... 199
11.35.2 Overwrite Ext Command (feature: 0014h) .......................................................................... 201
11.35.3 Sanitize Freeze Lock Ext Command (feature: 0020h) ........................................................ 203
11.35.4 Sanitize Status Ext Command (feature: 0000h) ................................................................. 205
11.36 Security Disable Password (F6h) ................................................................................................. 207
11.37 Security Erase Prepare (F3h) ...................................................................................................... 208
11.38 Security Erase Unit (F4h) ............................................................................................................ 209
11.39 Security Freeze Lock (F5h) .......................................................................................................... 211
11.40 Security Set Password (F1h) ........................................................................................................ 212
11.41 Security Unlock (F2h) ................................................................................................................... 214
11.42 Seek (7xh) ...................................................................................................................................... 215
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11.43 Sense Condition (F0h : Vendor specific) ...................................................................................... 216
11.44 Set Features (EFh) ........................................................................................................................ 217
11.44.1 Set Transfer Mode ................................................................................................................. 218
11.44.2 Write Cache ............................................................................................................................ 218
11.44.3 Serial ATA Feature ............................................................................................................... 218
11.44.4 Advanced Power Management ............................................................................................. 219
11.44.5 Set Maximum Host Interface Sector Time .......................................................................... 219
11.44.6 Extended Power Conditions (EPC) feature ......................................................................... 220
11.45 Set Max Address (F9h) ................................................................................................................. 227
11.45.1 Set Max Set Password (Feature = 01h)................................................................................ 229
11.45.2 Set Max Lock (Feature = 02h) .............................................................................................. 230
11.45.3 Set Max Unlock (Feature = 03h) .......................................................................................... 231
11.45.4 Set Max Freeze Lock (Feature = 04h) .................................................................................. 232
11.46 Set Max Address Ext (37h)........................................................................................................... 233
11.47 Set Multiple (C6h) ......................................................................................................................... 235
11.48 Sleep (E6h/99h) ............................................................................................................................. 236
11.49 SMART Function Set (B0h) ......................................................................................................... 237
11.49.1 SMART Subcommand ........................................................................................................... 237
11.49.2 Device Attributes Data Structure ........................................................................................ 241
11.49.3 Device Attribute Thresholds Data Structure ...................................................................... 245
11.49.4 SMART Log Directory ........................................................................................................... 246
11.49.5 SMART summary error log sector ........................................................................................ 246
11.49.6 Self-test log data structure ................................................................................................... 248
11.49.7 Selective self-test log data structure .................................................................................... 249
11.49.8 Error Reporting...................................................................................................................... 250
11.50 Standby (E2h/96h) ........................................................................................................................ 251
11.51 Standby Immediate (E0h/94h) ..................................................................................................... 252
11.52 Write Buffer (E8h) ........................................................................................................................ 253
11.53 Write Buffer DMA (EBh) .............................................................................................................. 254
11.54 Write DMA (CAh/CBh) ................................................................................................................. 255
11.55 Write DMA FUA Ext (3Dh) .......................................................................................................... 256
11.56 Write DMA Ext (35h) .................................................................................................................... 258
11.57 Write FPDMA Queued (61h) ........................................................................................................ 260
11.58 Write Log Ext (3Fh) ...................................................................................................................... 262
11.59 Write Log DMA Ext (57h) ............................................................................................................ 263
11.60 Write Multiple (C5h)..................................................................................................................... 264
11.61 Write Multiple Ext (39h) .............................................................................................................. 265
11.62 Write Multiple FUA Ext (CEh) .................................................................................................... 267
11.63 Write Sector(s) (30h/31h) .............................................................................................................. 269
11.64 Write Sector(s) Ext (34h) .............................................................................................................. 270
11.65 Write Stream DMA Ext (3Ah) ...................................................................................................... 271
11.66 Write Stream Ext (3Bh)................................................................................................................ 274
11.67 Write Uncorrectable Ext (45h) ..................................................................................................... 277
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List of tables
Table 1 Type and Model# ........................................................................................................................ 14
Table 2 Formatted capacity .................................................................................................................... 19
Table 3 Mechanical positioning performance ........................................................................................ 19
Table 4 World Wide Name Assignment ................................................................................................. 20
Table 5 Command overhead ................................................................................................................... 21
Table 6 Average seek time ...................................................................................................................... 22
Table 7 Single Track Seek Time ............................................................................................................. 22
Table 8 Latency Time .............................................................................................................................. 22
Table 9 Drive ready time ........................................................................................................................ 22
Table 10 Mode transition times .............................................................................................................. 23
Table 11 Interface connector pins and I/O signals ................................................................................ 26
Table 12 Parameter descriptions ........................................................................................................... 27
Table 13 Temperature and humidity ..................................................................................................... 28
Table 14 Input voltage ............................................................................................................................ 30
Table 15 SATA power consumption (4TB) ............................................................................................. 31
Table 16 SATA power consumption (2TB) ............................................................................................. 32
Table 17 Power supply generated ripple at drive power connector ..................................................... 33
Table 18 Power Consumption Efficiency ............................................................................................... 33
Table 19 Physical Dimensions ................................................................................................................ 38
Table 20 Random vibration PSD profile break points (operating) ...................................................... 40
Table 21 Random vibration (Rotational) PSD profile break points ..................................................... 40
Table 22 Random vibration PSD profile break points (nonoperating) ................................................ 41
Table 23 Sinusoidal shock wave ............................................................................................................. 41
Table 24 Rotational Shock ...................................................................................................................... 42
Table 25 Sound power levels .................................................................................................................. 43
Table 26 Alternate Status Register ........................................................................................................ 48
Table 27 Device Control Register ........................................................................................................... 49
Table 28 Device/Head Register ............................................................................................................... 49
Table 29 Error Register .......................................................................................................................... 50
Table 30 Status Register ......................................................................................................................... 51
Table 31 Reset Response ......................................................................................................................... 52
Table 32 Default Register Values ........................................................................................................... 53
Table 33 Diagnostic Codes ...................................................................................................................... 53
Table 34 Power conditions ...................................................................................................................... 56
Table 35 Command table for device lock operation -1 .......................................................................... 63
Table 36 Command table for device lock operation -2 .......................................................................... 64
Table 37 Command table for device lock operation -3 .......................................................................... 65
Table 38 Phy Event Counter Identifiers ................................................................................................ 75
Table 39 READ LOG EXT Log Page 11h data structure definition .................................................... 77
Table 40 NCQ Queue Management - Command definition ................................................................. 78
Table 41 Subcommand Field .................................................................................................................. 78
Table 42 NCQ Queue Management Log (12h) data structure definition ............................................ 80
Table 43 Rebuild Assist log (15h) data structure definition................................................................. 82
Table 44 SCT Log Page and direction .................................................................................................... 84
Table 45 Identify Device Information Word 206 ................................................................................... 84
Table 46 Output Registers of SCT Command Using SMART .............................................................. 85
Table 47 Input Registers of SCT Command Using SMART ................................................................ 85
Table 48 Input Registers of SCT Command Using Write Log Ext ...................................................... 86
Table 49 Output Registers of SCT Command Using Write Log Ext ................................................... 86
Table 50 Key Sector Format ................................................................................................................... 87
Table 51 SCT Action Code List ............................................................................................................... 87
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Table 52 Extended Status Code ............................................................................................................. 88
Table 53 Input Registers of SCT Data Transfer Using SMART .......................................................... 89
Table 54 Input Registers of SCT Data Transfer using Read/Write Log Ext ....................................... 89
Table 55 Input Registers of SCT Status Request Using SMART ........................................................ 90
Table 56 Input Registers of SCT Status Request Using Read Log Ext ............................................... 90
Table 57 Data Format of SCT Status Response -1 ............................................................................... 91
Table 58 Data Format of SCT Status Response -2 ............................................................................... 92
Table 59 SCT Write Same (Inputs) ........................................................................................................ 93
Table 60 Output Registers of SCT Write Same (Success) .................................................................... 93
Table 61 Output Registers of SCT Write Same (Error) ........................................................................ 94
Table 62 Error Recovery Control command (Inputs) ............................................................................ 95
Table 63 Error Recovery Control command (On puts) ......................................................................... 95
Table 64 Feature Control command (Inputs) ........................................................................................ 96
Table 65 Feature Control command (Outputs) ..................................................................................... 96
Table 66 Feature Code List .................................................................................................................... 97
Table 67 SCT Data Table command (Inputs) ........................................................................................ 98
Table 68 SCT Data Table command (Outputs) ..................................................................................... 98
Table 69 Table ID .................................................................................................................................... 98
Table 70 Data Format of HDA Absolute Temperature History Table -1 ............................................. 99
Table 71 Data Format of HDA Absolute Temperature History Table -2 ........................................... 100
Table 72 Extended Power Conditions Subcommands......................................................................... 101
Table 73 Power Condition IDs .............................................................................................................. 101
Table 74 Command Set .......................................................................................................................... 110
Table 75 Command Set –Continued– ................................................................................................... 111
Table 76 Command Set (Subcommand) ................................................................................................ 112
Table 77 Check Power Mode Command (E5h/98h) .............................................................................. 114
Table 78 Configure Stream Command (51h) ........................................................................................ 115
Table 79 Device Configuration Overlay Command (B1h) ................................................................... 117
Table 80 Device Configuration Overlay Features register values ...................................................... 117
Table 81 Device Configuration Overlay Data structure ...................................................................... 119
Table 82 DCO error information definition ......................................................................................... 120
Table 83 Download Microcode Command (92h) .................................................................................. 121
Table 84 Download Microcode DMA Command (93h) ........................................................................ 123
Table 85 Execute Device Diagnostic Command (90h) ........................................................................ 125
Table 86 Flush Cache Command (E7h) ............................................................................................... 126
Table 87 Flush Cache Ext Command (EAh) ........................................................................................ 127
Table 88 Format Track Command (50h) .............................................................................................. 128
Table 89 Format Unit Command (F7h) ............................................................................................... 129
Table 90 Identify Device Command (ECh) .......................................................................................... 130
Table 91 Identify device information ................................................................................................... 131
Table 92 Identify device information -Continued- .............................................................................. 132
Table 93 Identify device information -Continued- .............................................................................. 133
Table 94 Identify device information -Continued- .............................................................................. 134
Table 95 Identify device information -Continued- .............................................................................. 135
Table 96 Identify device information -Continued- .............................................................................. 136
Table 97 Identify device information -Continued- .............................................................................. 137
Table 98 Identify device information -Continued- .............................................................................. 138
Table 99 Identify device information -Continued- .............................................................................. 139
Table 100 Identify device information -Continued- ............................................................................ 140
Table 101 Idle Command (E3h/97h) .................................................................................................... 141
Table 102 Idle Immediate Command (E1h/95h) ................................................................................. 142
Table 103 Initialize Device Parameters Command (91h) ................................................................... 143
Table 104 NCQ Queue Management command (63h).......................................................................... 144
Table 105 Abort NCQ Queue Subcommand (0h) ................................................................................ 145
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Table 106 Abort Type Field .................................................................................................................. 146
Table 107 Deadline handling Subcommand (1h) ................................................................................ 147
Table 108 Read Buffer Command (E4h) .............................................................................................. 149
Table 109 Read Buffer DMA Command (E9h) .................................................................................... 150
Table 110 Read DMA Command (C8h/C9h) ........................................................................................ 151
Table 111 Read DMA Ext Command (25h) .......................................................................................... 153
Table 112 Read FPDMA Queued Command (60h) .............................................................................. 155
Table 113 Read Log Ext Command (2Fh) ............................................................................................ 157
Table 114 Log Address Definition ........................................................................................................ 158
Table 115 Log Address Definition for Serial ATA ............................................................................... 158
Table 116 General Purpose Log Directory ........................................................................................... 159
Table 117 General Purpose Log Directory for Serial ATA ................................................................. 159
Table 118 Extended Comprehensive SMART Error Log .................................................................... 160
Table 119 Extended Error log data structure ..................................................................................... 160
Table 120 Command data structure .................................................................................................... 161
Table 121 Error data structure ............................................................................................................ 161
Table 122 Extended Self-test log data structure ................................................................................. 163
Table 123 Extended Self-test log descriptor entry .............................................................................. 163
Table 124 Queued Error Log data structure definition ...................................................................... 167
Table 125 Read Stream Error Log ....................................................................................................... 168
Table 126 Stream Error Log entry ....................................................................................................... 168
Table 127 Write Stream Error Log....................................................................................................... 169
Table 128 Identify Device Data Log ..................................................................................................... 170
Table 129 List of supported IDENTIFY DEVICE data pages ........................................................... 170
Table 130 Capacity log page ................................................................................................................. 171
Table 131 Supported Capabilities log page ......................................................................................... 172
Table 132 Supported Capabilities log page -Continued- .................................................................... 173
Table 133 Current Settings log page ................................................................................................... 174
Table 134 Current Settings log page -Continued- .............................................................................. 175
Table 135 Strings log page .................................................................................................................... 175
Table 136 Security log page .................................................................................................................. 176
Table 137 Serial ATA log page .............................................................................................................. 178
Table 138 Serial ATA log page –Continued- ........................................................................................ 179
Table 139 Read Log DMA Ext Command (47h) .................................................................................. 180
Table 140 Read Multiple Commands (C4h)......................................................................................... 181
Table 141 Read Multiple Ext Command (29h) .................................................................................... 182
Table 142 Read Native Max ADDRESS (F8h) .................................................................................... 184
Table 143 Read Native Max Address Ext (27h) .................................................................................. 185
Table 144 Read Sector(s) Command (20h/21h) ................................................................................... 186
Table 145 Read Sector(s) Ext Command (24h).................................................................................... 187
Table 146 Read Stream DMA Ext Command (2Ah) ........................................................................... 188
Table 147 Read Stream Ext Command (2Bh) ..................................................................................... 191
Table 148 Read Verify Sector(s) Command (40h/41h) ........................................................................ 194
Table 149 Read Verify Sector(s) Ext Command (42h) ........................................................................ 195
Table 150 Recalibrate Command (1xh) ................................................................................................ 196
Table 151 Request Sense Data Ext command (0Bh) .......................................................................... 197
Table 152 Sanitize Device Feature Set (B4h) ...................................................................................... 198
Table 153 Crypto Scramble Ext Command (B4h/0011h).................................................................... 199
Table 154 Overwrite Ext Command (B4h/0014h) ............................................................................... 201
Table 155 Sanitize Freeze Lock Ext Command (B4h/0020h) ............................................................. 203
Table 156 Sanitize Status Ext Command (B4h/0000h) ...................................................................... 205
Table 157 Security Disable Password Command (F6h) ..................................................................... 207
Table 158 Password Information for Security Disable Password command .................................... 207
Table 159 Security Erase Prepare Command (F3h) ........................................................................... 208
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Table 160 Security Erase Unit Command (F4h) ................................................................................. 209
Table 161 Erase Unit Information ....................................................................................................... 209
Table 162 Security Freeze Lock Command (F5h) ................................................................................ 211
Table 163 Security Set Password Command (F1h)............................................................................. 212
Table 164 Security Set Password Information .................................................................................... 212
Table 165 Security Unlock Command (F2h) ....................................................................................... 214
Table 166 Security Unlock Information............................................................................................... 214
Table 167 Seek Command (7xh) ........................................................................................................... 215
Table 168 Sense Condition command(F0h) ......................................................................................... 216
Table 169 Set Features Command (EFh) ............................................................................................ 217
Table 170 Restore Power Condition Settings subcommand ............................................................... 220
Table 171 Go To Power Condition subcommand ................................................................................. 221
Table 172 Set Power Condition Timer subcommand .......................................................................... 222
Table 173 Set Power Condition State subcommand ........................................................................... 224
Table 174 Enable the EPC feature subcommand ............................................................................... 225
Table 175 Disable the EPC feature subcommand ............................................................................... 226
Table 176 Set Max ADDRESS (F9h) .................................................................................................... 227
Table 177 Set Max set Password .......................................................................................................... 229
Table 178 Set Max Set Password data contents ................................................................................. 229
Table 179 Set Max Lock ........................................................................................................................ 230
Table 180 Set Max Unlock (F9h) .......................................................................................................... 231
Table 181 Set Max Freeze Lock (F9h) ................................................................................................. 232
Table 182 Set Max Address Ext Command (37h) ............................................................................... 233
Table 183 Set Multiple Commands (C6h) ............................................................................................ 235
Table 184 Sleep Command (E6h/99h) .................................................................................................. 236
Table 185 SMART Function Set Command (B0h) .............................................................................. 237
Table 186 Log sector addresses ............................................................................................................ 239
Table 187 Device Attribute Data Structure ........................................................................................ 241
Table 188 Individual Attribute Data Structure .................................................................................. 241
Table 189 Device Attribute Thresholds Data Structure ..................................................................... 245
Table 190 Individual Threshold Data Structure ................................................................................. 245
Table 191 SMART Log Directory ......................................................................................................... 246
Table 192 SMART summary error log sector ...................................................................................... 246
Table 193 Error log data structure ...................................................................................................... 247
Table 194 Command data structure .................................................................................................... 247
Table 195 Error data structure ............................................................................................................ 247
Table 196 Self-test log data structure .................................................................................................. 248
Table 197 Selective self-test log data structure .................................................................................. 249
Table 198 Selective self-test feature flags ........................................................................................... 249
Table 199 SMART Error Codes ............................................................................................................ 250
Table 200 Standby Command (E2h/96h) ............................................................................................. 251
Table 201 Standby Immediate Command (E0h/94h) .......................................................................... 252
Table 202 Write Buffer Command (E8h) ............................................................................................. 253
Table 203 Write Buffer DMA Command (EBh) .................................................................................. 254
Table 204 Write DMA Command (CAh/CBh) ...................................................................................... 255
Table 205 Write DMA FUA Ext Command (3Dh) .............................................................................. 256
Table 206 Write DMA Ext Command (35h) ........................................................................................ 258
Table 207 Write FPDMA Queued Command (61h) ............................................................................ 260
Table 208 Write Log Ext Command (3Fh) ........................................................................................... 262
Table 209 Write Log DMA Ext Command (57h).................................................................................. 263
Table 210 Write Multiple Command (C5h) ......................................................................................... 264
Table 211 Write Multiple Ext Command (39h) ................................................................................... 265
Table 212 Write Multiple FUA Ext Command (CEh)......................................................................... 267
Table 213 Write Sector(s) Command (30h/31h) .................................................................................. 269
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Table 214 Write Sector(s) Ext Command (34h)................................................................................... 270
Table 215 Write Stream DMA Ext Command (3Ah) ........................................................................... 271
Table 216 Write Stream Ext Command (3Bh) .................................................................................... 274
Table 217 Write Uncorrectable Ext Command (45h) .......................................................................... 277
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List of figures
Figure 1 PList physical format ............................................................................................................... 24
Figure 2 Connector location.................................................................................................................... 25
Figure 3 The timing of COMRESET, COMINIT and COMWAKE ...................................................... 27
Figure 4 Limits of temperature and altitude ........................................................................................ 28
Figure 5 Limits of temperature and humidity ...................................................................................... 29
Figure 6 Top and side views and mechanical dimensions .................................................................... 35
Figure 7 Top and side views and mechanical dimensions (FIPS model) ............................................. 36
Figure 8 Bottom and side views with mounting hole locations ........................................................... 37
Figure 9 Bottom and side views with mounting hole locations (FIPS model) .................................... 38
Figure 10 Connector locations ................................................................................................................ 39
Figure 11 Initial Setting ......................................................................................................................... 60
Figure 12 Usual Operation ..................................................................................................................... 61
Figure 13 Password Lost ........................................................................................................................ 62
Figure 14 Sanitize Device state machines .......................................................................................... 105
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1 General
Capacity
Type
Interface
Interface
Description
4TB
US7SAK400
Serial ATA
HUS726040ALA610
Instant Secure Erase
HUS726040ALA611
BDE w/Instant Secure Erase
HUS726040ALA614
Secure Erase (Overwrite only), BDE off
HUS726040ALA616
SED*(BDE+TCG w/Instant Secure Erase)
2TB
US7SAK200
HUS726020ALA610
Instant Secure Erase
HUS726020ALA611
BDE w/Instant Secure Erase
HUS726020ALA614
Secure Erase (Overwrite only), BDE off
HUS726020ALA616
SED*(BDE+TCG w/Instant Secure Erase)
ESD
Electrostatic Discharge
Kbpi
1,000 bits per inch
Ktpi
1,000 tracks per inch
Gbps
1,000,000,000 bits per second
Mbps
1,000,000 bits per second
MB/s
1,000,000 bytes per second
TB
1,000,000,000,000 bytes (for Drive Capacity)
GB
1,000,000,000 bytes (for Drive Capacity)
MB
1,048,576 bytes (for Memory Size)
KB
1,024 bytes (for Memory Size)
S.M.A.R.T.
Self-Monitoring Analysis and Reporting Technology
DFT
Drive Fitness Test
ADM
Automatic Drive Maintenance
1.1 Introduction
This document describes the specifications of the 7K6000 an HGST 3.5-inch 7200-rpm serial ATA interface hard disk drive with the following model numbers:
*) SED : Self Encrypting Drive
Table 1 Type and Model#
1.2 Glossary
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1.3 General caution
The drive can be damaged by shock or ESD (Electrostatic Discharge). Any damage sustained by the drive after removal from the shipping package and opening the ESD protective bag are the responsibility of the user.
1.4 References
Serial ATA II: Extensions to Serial ATA 1.0 Serial ATA International Organization: Serial ATA Revision 3.1
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2 General features
Data capacities of 2TB/4TB Spindle speeds of 7200 RPM Fluid Dynamic Bearing motor Dual Stage Actuator Closed-loop actuator servo Load/Unload mechanism, non Head disk contact start/stop Automatic Actuator lock Write Cache Power saving modes/Low RPM idle mode (APM) S.M.A.R.T. (Self Monitoring and Analysis Reporting Technology) Adaptive zone formatting RVS(Rotational Vibration Safeguard) Sector Buffer size of 128MB Seek time of 7.6 ms in read operation (without Command Overhead) Sector format of 512 bytes/sector Segmented buffer implementation Native command queuing support Automatic Error Recovery procedures for read and write commands Self Diagnostics on Power on and resident diagnostics Serial ATA Data Transfer 6/3/1.5Gbps CHS and LBA mode Support security feature 48 bit addressing feature SATA-3.1 compliant Support Full Disk Encryption (specific model only)
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Part 1. Functional specification
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3 Fixed disk subsystem description
3.1 Control Electronics
The drive is electronically controlled by a microprocessor, several logic modules, digital/analog modules, and various drivers and receivers. The control electronics performs the following major functions:
Controls and interprets all interface signals between the host controller and the drive. Controls read write accessing of the disk media, including defect management and error recovery. Controls starting, stopping, and monitoring of the spindle. Conducts a power-up sequence and calibrates the servo. Analyzes servo signals to provide closed loop control. These include position error signal and estimated
velocity.
Monitors the actuator position and determines the target track for a seek operation. Controls the voice coil motor driver to align the actuator in a desired position. Constantly monitors error conditions of the servo and takes corresponding action if an error occurs. Monitors various timers such as head settle and servo failure. Performs self-checkout (diagnostics).
3.2 Head disk assembly
The head disk assembly (HDA) is assembled in a clean room environment and contains the disks and actuator assembly. Air is constantly circulated and filtered when the drive is operational. Venting of the HDA is accomplished via a breather filter.
The spindle is driven directly by an in-hub, brushless, sensorless DC drive motor. Dynamic braking is used to quickly stop the spindle.
3.3 Actuator
The read/write heads are mounted in the actuator. The actuator is a swing-arm assembly driven by a voice coil motor. A closed-loop positioning servo controls the movement of the actuator. An embedded servo pattern supplies feedback to the positioning servo to keep the read/write heads centered over the desired track.
The actuator assembly is balanced to allow vertical or horizontal mounting without adjustment. When the drive is powered off, the actuator automatically moves the head to the actuator ramp outside of the disk
where it parks.
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4 Drive characteristics
Description
4TB model
2TB model
Physical Layout
Label capacity
4TB
2TB
Bytes per Sector
512
512
Logical Layout
2
Number of Heads
16
16
Number of Sectors/ Track
63
63
Number of Cylinders
1
16,383
16,383
Number of Sectors
7,814,037,168
3,907,029,168
Total Logical Data Bytes
4,000,787,030,016
2,000,398,934,016
Description
4TB
Model
2TB
Model
Max Data transfer rate (Mbps)
1,900
1,900
Interface transfer rate (MB/s)
600
600
Typ Sustained transfer rate (MB/s)
201
201
Data buffer size (MB)
128
128
Rotational speed (RPM)
7,200
7,200
Configurable number of buffer segment Number
2,048 max
2,048 max
Recording density- max (Kbpi)
1,756
1,756
Track density (Ktpi)
355
355
Areal density - max (Gbits/in2)
623
623
This section describes the characteristics of the drive.
4.1 Default logical drive parameters
The default of the logical drive parameters in Identify Device data is as shown below.
Table 2 Formatted capacity
Notes:
1
Number of cylinders: For drives with capacities greater an 8.45 GB the IDENTIFY DEVICE information word 01
limits the number of cylinders to 16,383 per the ATA specification.
2
Logical layout: Logical layout is an imaginary drive parameter (that is, the number of heads) which is used to access the drive from the system interface. The Logical layout to Physical layout (that is, the actual Head and Sectors) translation is done automatically in the drive. The default setting can be obtained by issuing an IDENTIFY DEVICE command
4.2 Data sheet
Table 3 Mechanical positioning performance
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4.3 World Wide Name Assignment
Description
4TB model
2TB Model
Organization
HGST
HGST
Manufacturing Site
Thailand
Thailand
Product
Ultrastar 7K6000-4000
Ultrastar 7K6000-2000
OUI
000CCAh
000CCAh
SHBU Block Assignment
Thailand:243h,244h
Thailand:245h
Port/Node ID
11b
11b
Table 4 World Wide Name Assignment
4.4 Drive organization
4.4.1 Drive Format
Upon shipment from HGST manufacturing the drive satisfies the sector continuity in the physical format by means of the defect flagging strategy described in Section 5 on page.24 in order to provide the maximum performance to users.
4.4.2 Cylinder allocation
Physical cylinder is calculated from the starting data track of 0. It is not relevant to logical CHS. Depending on the capacity some of the inner zone cylinders are not allocated.
Data cylinder This cylinder contains the user data which can be sent and retrieved via read/write commands and a spare area for reassigned data.
Spare cylinder The spare cylinder is used by HGST manufacturing and includes data sent from a defect location.
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4.5 Performance characteristics
Command type (Drive is in quiescent state)
Typical time (ms)
Typical time for NCQ
command (ms)
Read (Cache not hit)
0.2
0.2
Read (Cache hit)
0.2
0.2
Write
0.5
0.5
Seek
0.5
not applicable
Drive performance is characterized by the following parameters:
Command overhead Mechanical positioning
- Seek time
- Latency
Data transfer speed Buffering operation (Look ahead/Write cache)
All the above parameters contribute to drive performance. There are other parameters that contribute to the performance of the actual system. This specification defines the characteristics of the drive, not the characteristics of the system throughput which depends on the system and the application.
4.5.1 Command overhead
Command overhead is defined as the time required
from the time H->D Reg FIS w/ command bit is sent by host to the time
PIO Set Up FIS is sent by device(PIO Read/Write) DATA FIS is sent by device (DMA Read) DMA Activate FIS is sent by device (DMA Write) DMA Set Up FIS is sent by device (NCQ Read/Write) Seek Start (Read cache not hit or Seek)
The table below gives average command overhead.
Table 5 Command overhead
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4.5.2 Mechanical positioning
Command Type
Typical (ms)
Max (ms)
Read
7.6
9.0
Write
8.0
10.0
Function
Typical (ms)
Max (ms)
Read
0.25
0.35
Write
0.30
0.40
Rotational speed
Time for a revolution
(ms)
Average latency
(ms)
7200 RPM
8.3
4.16
Power on to ready
Typical (sec)
Maximum (sec)
5 Disk model
20
30
Ready
The condition in which the drive is able to perform a media access command (such as read, write) immediately
Power on
This includes the time required for the internal self diagnostics.
4.5.2.1 Average seek time (without command overhead, including settling)
Table 6 Average seek time
The terms “Typical” and “Max” are used throughout this specification with the following meanings:
Typical. The average of the drive population tested at nominal environmental and voltage conditions. Max. The maximum value measured on any one drive over the full range of the environmental and voltage
conditions. (See Section 6.2, “Environment” and Section 6.3, “DC Power Requirements”)
4.5.2.2 Single track seek time (without command overhead, including
settling)
Common to all models and all seek modes
Table 7 Single Track Seek Time
4.5.2.3 Average latency
Table 8 Latency Time
4.5.3 Drive ready time
Table 9 Drive ready time
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4.5.4 Operating modes
Operating mode
Description
Spin-up
Start up time period from spindle stop or power down
Seek
Seek operation mode
Write
Write operation mode
Read
Read operation mode
Unload Idle
Spindle rotation at 7200 RPM with heads unloaded
Idle
Spindle motor is working normally. Servo system is sleeping or waking up. Commands can be received and processed immediately
Standby
Actuator is unloaded and spindle motor is stopped. Commands can be received immediately
Sleep
Actuator is unloaded and spindle motor is stopped. Only soft reset or hard reset can change the mode to standby
From
To
RPM
Typical Transition
time(sec)
Max Transition
time(sec)
Standby
Idle
0 -> 7200
15
30
Idle
Standby
7200 -> 0
Immediately
Immediately
Unload idle
Idle
7,200
1
30
Idle
Unload Idle
7,200
Immediately
Immediately
Low RPM
Idle
6300 -> 7200
4
30
Note: The command is processed immediately but there will be an actual spin down time reflecting the seconds passed until the spindle motor stops.
4.5.4.1 Operating mode descriptions
Note: Upon power down or spindle stop a head locking mechanism will secure the heads in the OD parking position.
4.5.4.2 Mode transition times
Mode transition times are shown below.
Table 10 Mode transition times
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5 Defect flagging strategy
N N+1 N+2 N+3
defect defect
skip
skip
Media defects are remapped to the next available sector during the Format Process in manufacturing. The mapping from LBA to the physical locations is calculated by an internally maintained table.
5.1 Shipped format
Data areas are optimally used. No extra sector is wasted as a spare throughout user data areas. All pushes generated by defects are absorbed by the spare tracks of the inner zone.
Figure 1 PList physical format
Defects are skipped without any constraint, such as track or cylinder boundary. The calculation from LBA to physical is done automatically by internal table.
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6 Specification
6.1 Electrical interface
6.1.1 Connector location
Refer to the following illustration to see the location of the connectors.
Figure 2 Connector location
6.1.1.1 Signal connector
The SATA signal connector is a 7-pin connector. Power connector is a 15-pin connector.
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6.1.2 Signal definition
No.
Plug Connector pin definition
Signal
I/O
S1
GND
2nd mate
Gnd
S2
A+
Differential signal A from Phy
RX+
Input
S3
A- RX-
Input
Signal
S4
Gnd
2nd mate
Gnd
S5
B-
Differential signal B from Phy
TX-
Output
S6
B+ TX+
Output
S7
Gnd
2nd mate
Gnd
Key and spacing separate signal and power segments
P1
V33
3.3V power
3.3V
P2
V33
3.3V power
3.3V
P3
V33
3.3V power, pre-charge, 2nd Mate
3.3V
P4
Gnd
1st mate
Gnd
P5
Gnd
2nd mate
Gnd
P6
Gnd
2nd mate
Gnd
P7
V5
5V power,pre-charge,2nd Mate
5V
P8
V5
5V power
5V
Power
P9
V5
5V power
5V
P10
Gnd
2nd mate
Gnd
P11
Reserved
Support staggered spin-up and LED activity
Vih max=3.465V
Reserve
P12
Gnd
1st mate
Gnd
P13
V12
12V power,pre-chage,2nd mate
V12
P14
V12
12V power
V12
P15
V12
12V power
V12
SATA has receivers and drivers to be connected to Tx+/- and Rx +/- Serial data signal. Defines the signal names of I/O connector pin and signal name.
Table 11 Interface connector pins and I/O signals
6.1.2.1 TX+ / TX-
These signals are the outbound high-speed differential signals that are connected to the serial ATA cable
6.1.2.2 RX+ / RX-
These signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
6.1.2.3 5V PRECHARGE
+5 Vdc power that is available on the extended pins. This is used for pre-charging the I/O module. The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
6.1.2.4 12V PRECHARGE
+12 Vdc power that is available on the extended pins. This is used for pre-charging the 12V circuitry in the I/O Option slot module. The enclosure shall be capable of supplying 2.4 A peak on each 12 V pre-charge pin (R=5 Ohms). These signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
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6.1.3 Out of band signaling
PARAMETER DESCRIPTION
Nominal (ns)
t1
ALIGN primitives
106.7
t2
Spacing
320
t3
ALIGN primitives
106.7
t4
Spacing
106.7
COMRESET/COMINIT
t1
t2
t3
t4
COMWAKE
Figure 3 The timing of COMRESET, COMINIT and COMWAKE
Table 12 Parameter descriptions
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6.2 Environment
Operating conditions
Temperature Relative humidity Maximum wet bulb temperature Maximum temperature gradient Altitude
5 to 60°C 8 to 90% non-condensing
29.4°C non-condensing 20°C/Hour –300 to 3,048 m
Non-Op conditions
Temperature Relative humidity Maximum wet bulb temperature
Maximum temperature gradient
Altitude
-40 to 70°C ( storage 0 to 70°C ) 5 to 95% non-condensing 35°C non-condensing
30°C/Hour
–300 to 12,000 m (Inside dashed-dotted line of Figure 4)
-2000
-1000
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
12000
13000
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80
Altitude (m)
Temperature (degC)
Altitude specification
Non-Operating
-40degC/12000m 40degC/12000m
70degC/3048m
5degC/3048m
60degC/3048m
60degC/-300m
5degC/-300m
-40degC/-300m
70degC/-300m
Operating
6.2.1 Temperature and humidity
Table 13 Temperature and humidity
Notes:
1. The system is responsible for providing sufficient ventilation to maintain a surface temperature below 65°C at
the center of the top cover of the drive.
2. Non condensing conditions should be maintained at any time.
3. Maximum storage period within shipping package is one year.
Figure 4 Limits of temperature and altitude
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Figure 5 Limits of temperature and humidity
6.2.2 Corrosion test
The drive shows no sign of corrosion inside and outside of the hard disk assembly and is functional after being subjected to seven days at 50°C with 90% relative humidity.
6.2.3 Atmospheric condition
Environments that contain elevated levels of corrosives (e.g. hydrogen sulfide, sulfur oxides, or hydrochloric acid) should be avoided. Care must be taken to avoid using any compound/material in a way that creates an elevated level of corrosive materials in the atmosphere surrounding the disk drive. Care must also be taken to avoid use of any organometallic (e.g. organosilicon or organotin) compound/material in a way that creates elevated vapor levels of these compounds/materials in the atmosphere surrounding the disk drive.
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6.3 DC power requirements
Input voltage
During run and
spin up
Absolute max
spike voltage
Supply rise time
+5 Volts Supply
5V ± 5%
–0.3 to 5.5V
0 to 5sec
+12 Volts Supply
12V ± 5%
–0.3 to 15.0V
0 to 5sec
Damage to the drive electronics may result if the power supply cable is connected or disconnected to the legacy Power connector while power is being applied to the drive (no hot plug/unplug is allowed). If SATA power supply cable is connected or disconnected to the SATA power connector, hot plug/unplug is allowed.
6.3.1 Input voltage
Table 14 Input voltage
Caution : To avoid damage to the drive electronics, power supply voltage spikes must not exceed specifications.
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6.3.2 Power supply current (typical
(SATA) Serial ATA @6Gb/sec 4TB Model
Current Current Power
IO/Sec +5V Amp +12V Amp Watts
Spin up Peak DC [1]
1.49
Spin up Peak AC
0.46 1.75
Idle_0 Ave.
0.28 0.47 7.1
Idle Ripple [2]
0.25 0.37
Random RW 8KB Qd=1 Peak
0.74 2.00
Random RW 8KB Qd=1 Ave. 40
0.33 0.60 8.8
Random RW 4KB Qd=4 Peak
0.85 2.06
Random RW 4KB Qd=4 Ave.
109 0.32 0.75 10.6
Random RW 4KB Qd=1 Peak
0.75 2.05
Random RW 4KB Qd=1 Ave.
81 0.32 0.71 10.2
Sequential Read Peak
0.77
Sequential Read Ave. [3]
0.65 0.48 9.0
Sequential Write Peak
0.60
Sequential Write Ave. [3]
0.49 0.52 8.7
0.72
BMS Ave.
0.60 0.49 8.8
Power Save Mode Current Power
Time in
seconds
(PHY state: Active) +5V Amp +12V Amp Watts
Watts Saved 12V DC peak 12V AC peak
Typical
Idle_A
0.26 0.47 7.0 0.1 0
Idle_B
0.20 0.40 5.8 1.3 1
Idle_C
0.20 0.30 4.6 2.5 1.06 1.27 4
Standby_Y
0.20 0.30 4.6 2.5 1.06 1.27 4
Standby_Z
0.19 0.004 1.0 6.1 1.49 1.75 12
Sleep
0.19 0.004 1.0 6.1 1.49 1.75 12
PHY power condition
Partial
Slumber
Notes
Reference data, sample number = 10HDDs, DE temp. = 40degC (25degC for Spin up), WCE=0 [1] 200mS windowed average [2] Pk to Pk BWL @20MHz [3] Max transfer rate
Port A
Watts Saved
0.35
0.35
Recovery [1]
1
)
Table 15 Power consumption (4TB)
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(SATA) Serial ATA @6Gb/sec 2TB Model
Current Current Power
IO/Sec +5V Amp +12V Amp Watts
Spin up Peak DC [1]
1.47
Spin up Peak AC
0.47 1.74
Idle_0 Ave.
0.28 0.26 4.6
Idle Ripple [2]
0.24 0.33
Random RW 8KB Qd=1 Peak
0.76 1.76
Random RW 8KB Qd=1 Ave. 40
0.33 0.38 6.2
Random RW 4KB Qd=4 Peak
0.88 1.81
Random RW 4KB Qd=4 Ave.
109 0.32 0.53 8.0
Random RW 4KB Qd=1 Peak
0.74 1.79
Random RW 4KB Qd=1 Ave.
81 0.32 0.49 7.5
Sequential Read Peak
0.78
Sequential Read Ave. [3]
0.65 0.28 6.6
Sequential Write Peak
0.60
Sequential Write Ave. [3]
0.51 0.32 6.4
0.72
BMS Ave.
0.60 0.28 6.4
Power Save Mode Current Power
Time in
seconds
(PHY state: Active) +5V Amp +12V Amp Watts
Watts Saved 12V DC peak 12V AC peak
Typical
Idle_A
0.26 0.26 4.5 0.1 0
Idle_B
0.20 0.23 3.7 0.9 1
Idle_C
0.20 0.18 3.1 1.5 1.05 1.26 4
Standby_Y
0.20 0.18 3.1 1.5 1.05 1.26 4
Standby_Z
0.19 0.004 1.0 3.6 1.46 1.74 12
Sleep
0.19 0.004 1.0 3.6 1.46 1.74 12
PHY power condition
Partial
Slumber
Notes
Reference data, sample number = 10HDDs, DE temp. = 40degC (25degC for Spin up), WCE=0 [1] 200mS windowed average [2] Pk to Pk BWL @20MHz [3] Max transfer rate
Recovery [1]
Port A
Watts Saved
0.35
0.36
Table 16 Power consumption (2TB)
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6.3.3 Power supply generated ripple at drive power connector
Maximum (mV pp)
MHz
+5V DC
200
0-10
+12V DC
250
0-10
Power Consumption
Efficiency at Idle
W/TB
1.2
W/GB
0.0012
Table 17 Power supply generated ripple at drive power connector
During drive start up and seeking 12-volt ripple is generated by the drive (referred to as dynamic loading). If the power of several drives is daisy chained together, the power supply ripple plus the dynamic loading of the other drives must remain within the above regulation tolerance. A common supply with separate power leads to each drive is a more desirable method of power distribution.
To prevent external electrical noise from interfering with the performance of the drive, the drive must be held by four screws in a user system frame which has no electrical level difference at the four screws position and has less than ±300 millivolts peak to peak level difference to the ground of the drive power connector.
6.3.4 Power Consumption Efficiency
Table 18 Power Consumption Efficiency
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6.4 Reliability
6.4.1 Data integrity
No more than one sector is lost at Power loss condition during the write operation when the write cache option is disabled. If the write cache option is active, the data in write cache will be lost. To prevent the loss of customer data, it is recommended that the last write access before power off be issued after setting the write cache off.
6.4.2 Cable noise interference
To avoid any degradation of performance throughput or error rate when the interface cable is routed on top or comes in contact with the HDA assembly, the drive must be grounded electrically to the system frame by four screws. The common mode noise or voltage level difference between the system frame and power cable ground or AT interface cable ground should be in the allowable level specified in the power requirement section.
6.4.3 Load/Unload
The product supports a minimum of 600,000 normal load/unloads in a 40° C environment. Load/unload is invoked by transition of the HDD's power mode.
Idle <-> unload idle Idle <-> Low rpm idle
6.4.4 Start/stop cycles
The drive withstands a minimum of 50,000 start/stop cycles in a 40° C environment and a minimum of 10,000 start/stop cycles in extreme temperature or humidity within the operating range.
6.4.5 Preventive maintenance
None
6.4.6 Data reliability
Probability of not recovering data is 1 in 1015 bits read. LDPC on the fly/ offline data correction
600 bit LDPC This implementation recovers maximum 330 bits single burst error by on the fly correction and maximum 450
bits single burst error by offline correction
6.4.7 Required Power-Off Sequence
The required BIOS sequence for removing power from the drive is as follows:
Step 1: Issue one of the following commands. Standby Standby immediate Sleep
Note: Do not use the Flash Cache command for the power off sequence because this command does not
invoke Unload
Step 2: Wait until the Command Complete status is returned. In a typical case 350 ms are required for the
command to finish completion; however, the BIOS time out value needs to be 30 seconds considering error recovery time.
Step 3: Terminate power to HDD
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6.5 Mechanical specifications
6.5.1 Physical dimensions
Figure 6 Top and side views and mechanical dimensions
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Figure 7 Top and side views and mechanical dimensions (FIPS model)
All dimensions are in millimeters.
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Figure 8 Bottom and side views with mounting hole locations
All dimensions in the above figure are in millimeters.
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Figure 9 Bottom and side views with mounting hole locations (FIPS model)
Height (mm)
Width (mm)
Length (mm)
Weight (grams)
26.1 MAX
101.6 ± 0.25
147 MAX
715 Max.
All dimensions in the above figure are in millimeters. The following table shows the physical dimensions of the drive.
Table 19 Physical Dimensions
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6.5.2 Connector locations
Figure 10 Connector locations
6.5.3 Drive mounting
The drive will operate in all axes (6 directions). Performance and error rate will stay within specification limits if the drive is operated in the other orientations from which it was formatted.
For reliable operation, the drive must be mounted in the system securely enough to prevent excessive motion or vibration of the drive during seek operation or spindle rotation, using appropriate screws or equivalent mounting hardware.
The recommended mounting screw torque is 0.6 - 1.0 Nm (6-10 Kgf.cm). The recommended mounting screw depth is 4 mm maximum for bottom and 6.1 mm maximum for horizontal
mounting. Drive level vibration test and shock test are to be conducted with the drive mounted to the table using the bottom
four screws.
6.5.4 Heads unload and actuator lock
Heads are moved out from disks (unload) to protect the disk data during shipping, moving, or storage. Upon power down, the heads are automatically unloaded from disk area and the locking mechanism of the head actuator will secure the heads in unload position.
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6.6 Vibration and shock
Frequency
5 Hz
17 Hz
45 Hz
48 Hz
62 Hz
65 Hz
150 Hz
200 Hz
500 Hz
RMS
(m/sec2)
[(m/sec2)2/
Hz]
1.9 x
10E–3
1.1 x
10E–1
1.1 x
10E–1
7.7 x
10E–1
7.7 x
10E–1
9.6 x
10E–2
9.6 x
10E–2
4.8 x
10E–2
4.8 x
10E-2
6.57
Frequency
20 Hz
100 Hz
200 Hz
800 Hz
1000
Hz
1500
Hz
1700
Hz
2000
Hz
RMS
(Rad/s2)
[(Rad/s2) 2/
Hz]
1.90E­02
1.90E-
02
1.87E-
01
1.87E-
01
5.33E-
02
7.70E-
03
4.00E-
03
4.00E-
03
12.5
All vibration and shock measurements recorded in this section are made with a drive that has no mounting attachments for the systems. The input power for the measurements is applied to the normal drive mounting points.
6.6.1 Operating vibration
6.6.1.1 Random vibration (Linear)
The test is 30 minutes of random vibration using the power spectral density (PSD) levels shown below in each of three mutually perpendicular axes. The disk drive will operate without non-recoverable errors when subjected to the below random vibration levels.
Table 20 Random vibration PSD profile break points (operating)
The overall RMS (root mean square) level is 6.57 m/sec2 (0.67 G).
6.6.1.2 Swept sine vibration (Linear)
The drive will meet the criteria shown below while operating in the specified conditions:
No errors occur with 4.9 m/sec2 (0.5 G) 0 to peak, 5 to 300 to 5 Hz sine wave, 0.5 oct/min sweep rate with 3-
minute dwells at two major resonances
No data loss occurs with 9.8 m/sec2 (1 G) 0 to peak, 5 to 300 to 5 Hz sine wave, 0.5 oct/min sweep rate with 3-
minute dwells at two major resonances
6.6.1.3 Random vibration (Rotational)
The drive will meet the criteria shown below while operating in the specified conditions:
Less than 20% Performance degradation The overall RMS (Root Mean Square) level of vibration is 12.5Rad/sec^2. PSD profile is shown below.
Table 21 Random vibration (Rotational) PSD profile break points
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6.6.2 Nonoperating vibration
Frequency
2 Hz
4 Hz
8 Hz
40 Hz
55 Hz
70 Hz
200 Hz
[(m/sec2)2/Hz]
0.096
2.89
2.89
0.289
0.962
0.962
0.096
Acceleration level (m/sec2)
Duration (ms)
2940(300G)
1
1470(150G)
11
The drive does not sustain permanent damage or loss of previously recorded data after being subjected to the environment described below
6.6.2.1 Random vibration
The test consists of a random vibration applied for each of three mutually perpendicular axes with the time duration of 10 minutes per axis. The PSD levels for the test simulate the shipping and relocation environment shown below. The overall RMS (Root Mean Square) level of vibration is 10.2 m/sec2 (1.04 G).
Table 22 Random vibration PSD profile break points (nonoperating)
6.6.2.2 Swept sine vibration
19.6 m/sec2 (2 G) (Zero to peak), 5 to 500 to 5 Hz sine wave 0.5 oct/min sweep rate 3 minutes dwell at two major resonances
6.6.3 Operating shock
The drive meets the following criteria while operating in the conditions described below. The shock test consists of 10 shock inputs in each axis and direction for total of 60. There must be a delay between shock pulses long enough to allow the drive to complete all necessary error recovery procedures.
No error occurs with a 98.1 m/sec2 (10 G) half-sine shock pulse of 11 ms duration  No data loss occurs with a 294 m/sec2 (30 G) half-sine shock pulse of 4 ms duration.  No data loss occurs with a 686 m/sec2 (70 G) half-sine shock pulse of 2 ms duration.
6.6.4 Nonoperating shock
The drive will operate without non-recoverable errors after being subjected to shock pulses with the following characteristics.
6.6.4.1 Trapezoidal shock wave
Approximate square (trapezoidal) pulse shape Approximate rise and fall time of pulse is1 ms Average acceleration level is 490 m/sec2 (50 G). (Average response curve value during the time following the 1
ms rise time and before the 1 ms fall with a time "duration of 11 ms")
Minimum velocity change is 4.23 m/sec
6.6.4.2 Sinusoidal shock wave
The shape is approximately half-sine pulse. The figure below shows the maximum acceleration level and duration.
Table 23 Sinusoidal shock wave
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6.6.5 Nonoperating Rotational shock
Duration
Rad/sec2
1 ms
30,000
2 ms
20,000
All shock inputs shall be applied around the actuator pivot axis.
Table 24 Rotational Shock
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6.7 Acoustics
Mode
7200rpm (Typical / Max)
Idle
2.9 / 3.4
Operating
3.6 / 4.0
Idle mode.
The drive is powered on, disks spinning, track following, unit ready to receive and respond to interface commands.
Operating mode.
Continuous random cylinder selection and seek operation of the actuator with a dwell time at each cylinder. The seek rate for the drive is to be calculated as shown below:
The upper limit criteria of the octave sound power levels are given in Bels relative to one picowatt and are shown in the following table. The sound power emission levels are measured in accordance with ISO 7779.
Table 25 Sound power levels
Mode definition:
Dwell time = 0.5 x 60/RPMSeek rate = 0.4 / (Average seek time + Dwell time)
6.8 Identification labels
The following labels are affixed to every drive shipped from the drive manufacturing location in accordance with the appropriate hard disk drive assembly drawing:
A label containing the HGST logo, the HGST Japan part number, and the statement “Made by HGST Japan, Ltd.”
or HGST Japan approved equivalent
A label containing the drive model number, the manufacturing date code, the formatted capacity, the place of
manufacture, UL/CSA/TUV/CE/C-Tick mark logos and WEEE/China RoHS logos
A bar code label containing the drive serial number A label containing the jumper pin description A user designed label per agreement
The above labels may be integrated with other labels.
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6.9 Safety
6.9.1 UL and CSA standard conformity
The product is qualified per UL60950-1：Second Edition and CAN/CSA-C22.2 No.60950-1-07 Second Edition, for use in Information Technology Equipment including Electric Business Equipment.
The UL recognition or the CSA certification is maintained for the product life. The UL and C-UL recognition mark or the CSA monogram for CSA certification appear on the drive.
6.9.2 German Safety Mark
The product is approved by TUV on Test requirement: EN60950-1：2006+A11 but the GS mark is not applicable to internal devices such as this product.
6.9.3 Flammability
The printed circuit boards used in this product are made of material with the UL recognized flammability rating of V­1 or better. The flammability rating is marked or etched on the board. All other parts not considered electrical components are made of material with the UL recognized flammability rating of V-2 minimum basically.
6.9.4 Safe handling
The product is conditioned for safe handling in regards to sharp edges and corners.
6.9.5 Substance restriction requirements
The product complies with the Directive 2002/95/EC of the European Parliament on the restrictions of the use of the certain hazardous substances in electrical and electronic equipment (RoHS) and with Halogen free requirements based on the electronics industry standard, IEC 61249-2-21 (http://www.iec.ch/). FIPS models do not comply with IEC 61249-2-21.
6.9.6 Secondary circuit protection
Spindle/VCM driver module includes 12 V over current protection circuit.
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6.10 Electromagnetic compatibility
When installed in a suitable enclosure and exercised with a random accessing routine at maximum data rate, the drive meets the following worldwide EMC requirements:
United States Federal Communications Commission (FCC) Rules and Regulations (Class B), Part 15. (A 6 dB
buffer shall be maintained on the emission requirements).
European Economic Community (EEC) directive number 76/889 related to the control of radio frequency
interference and the Verband Deutscher Elektrotechniker (VDE) requirements of Germany (GOP).Spectrum Management Agency (SMA) EMC requirements of Australia. The SMA has approved C-Tick Marking for HGST Japan.
6.10.1 CE Mark
The product is declared to be in conformity with requirements of the following EC directives under the sole responsibility of HGST Japan, Ltd:
Council Directive 2004/108/EC on the approximation of laws of the Member States relating to electromagnetic compatibility.
6.10.2 C-Tick Mark
The product complies with the following Australian EMC standard: Limits and methods of measurement of radio disturbance characteristics of information technology, AS/NZS 3548 :
1995 Class B.
6.10.3 BSMI Mark
The product complies with the Taiwan EMC standard “Limits and methods of measurement of radio disturbance characteristics of information technology equipment, CNS 13438 Class B.”
6.10.4 KC Mark
The product complies with the Korea EMC standard. The regulation for certification of information and
communication equipment is based on “Telecommunications Basic Act” and “Radio Waves Act” Korea EMC
requirement are based technically on CISPR22 measurement standards and limits. KC standards are likewise based on IEC standards.
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Part 2. Interface Specification
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7 General
Device
Device indicates HUS7260xxALA61n
Host
Host indicates the system that the device is attached to.
Check Power Mode
If the Extended Power Conditions feature set is disabled and the device is in Idle mode, Check Power Mode command returns FFh by Sector Count Register, instead of returning 80h. Refer to 11.1 “Check Power Mode” for detail.
COMRESET
COMRESET response is not the same as that of Power On Reset. Refer to section 9.1 “Reset Response” for detail.
Download
Both Download Microcode and Download Microcode DMA are aborted when the device is in security locked mode.
COMRESET response time
During 500ms from Power On Reset, COMINIT is not returned within 10ms as a response to COMRESET.
Streaming Commands
When the device is in standby mode, Streaming Commands can’t be completed
while waiting for the spindle to reach operating speed even if execution time exceeds specified CCTL (Command Completion Time Limit). The minimum CCTL is 50ms.CCTL is set to 50ms when the specified value is shorter than 50ms.
SCT Error Recovery Control
When the device is in standby mode, any command where error recovery time limit is specified can’t be completed while waiting for the spindle to reach operating speed even if execution time exceeds specified recovery time limit. The minimum time limit is 6.5 second. When the specified time limit is shorter than 6.5 second, the issued command is aborted.
7.1 Introduction
This specification describes the host interface of HUS7260xxALA61n The interface conforms to the following working documents of Information technology with certain limitations
described in the chapter 7.3 “Deviations from Standard” on page 47
- Serial ATA International Organization: Serial ATA Revision 3.0
7.2 Terminology
7.3 Deviations From Standard
The device conforms to the referenced specifications, with deviations described below.
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8 Registers
Alternate Status Register
7 6 5 4 3 2 1
0
BSY
RDY
DF
DSC
/SERV
DRQ
COR
IDX
ERR
In Serial ATA, the host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the Shadow Register Block. Shadow Register Block registers are interface registers used for delivering commands to the device or posting status from the device. About details, please refer to the Serial ATA Specification.
In the following cases, the host adapter sets the BSY bit in its shadow Status Register and transmits a FIS to the device containing the new contents.
Command register is written in the Shadow Register Block Device Control register is written in the Shadow Register Block with a change of state of the SRST bit COMRESET is requested
8.1 Alternate Status Register
Table 26 Alternate Status Register
This register contains the same information as the Status Register. The only difference is that reading this register does not imply interrupt acknowledge or clear a pending interrupt. See 8.11 “Status Register” on the page 51 for the definition of the bits in this register.
8.2 Command register
This register contains the command code being sent to the device. Command execution begins immediately after this register is written. The command set is shown in Table 74 Command Set on page 110.
All other registers required for the command must be set up before writing the Command Register.
8.3 Cylinder High Register
This register contains the high order bits of the starting cylinder address for any disk access. At the end of the command, this register is updated to reflect the current cylinder number.
In LBA Mode this register contains Bits 16-23. At the end of the command, this register is updated to reflect the current LBA Bits 16-23.
The cylinder number may be from zero to the number of cylinders minus one. When 48-bit addressing commands are used, the “most recently written” content contains LBA Bits 16-23, and the
“previous content” contains Bits 40-47. The 48-bit Address feature set is described in 9.12.
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8.4 Cylinder Low Register
Device Control Register
7 6 5 4 3 2 1
0
HOB - - - 1
SRST
-IEN
0
Bit Definitions
HOB
HOB (high order byte) is defined by the 48-bit Address feature set. A write to any Command Register shall clear the HOB bit to zero.
SRST (RST)
Software Reset. The device is held reset when RST=1. Setting RST=0 re-enables the device. The host must set RST=1 and wait for at least 5 microseconds before setting RST=0, to ensure
that the device recognizes the reset.
-IEN
Interrupt Enable. When –IEN=0, and the device is selected, device interrupts to the host will be enabled. When –IEN=1, or the device is not selected, device interrupts to the host will be disabled.
Device/Head Register
7 6 5 4 3 2 1
0
1 L 1
DRV
HS3
HS2
HS1
HS0
Bit Definitions
L
Binary encoded address mode select. When L=0, addressing is by CHS mode. When L=1, addressing is by LBA mode.
DRV
Device. This product ignores this bit.
HS3,HS2,HS1,HS0
Head Select. These four bits indicate binary encoded address of the head. HS0 is the least significant bit. At command completion, these bits are updated to reflect the currently selected head. The head number may be from zero to the number of heads minus one. In LBA mode, HS3 through HS0 contain bits 24-27 of the LBA. At command completion, these bits are updated to reflect the current LBA bits 24-27.
This register contains the low order bits of the starting cylinder address for any disk access. At the end of the command, this register is updated to reflect the current cylinder number.
In LBA Mode this register contains Bits 8-15. At the end of the command, this register is updated to reflect the current LBA Bits 8-15.
The cylinder number may be from zero to the number of cylinders minus one. When 48-bit addressing commands are used, the “most recently written” content contains LBA Bits 8-15, and the
“previous content” contains Bits 32-39.
8.5 Device Control Register
Table 27 Device Control Register
8.6 Device/Head Register
Table 28 Device/Head Register
This register contains the device and head numbers.
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8.7 Error Register
Error Register
7 6 5 4 3 2 1
0
ICRCE
UNC
0
IDNF
0
ABRT
TK0NF
AMNF
Bit Definitions
ICRCE (CRC)
Interface CRC Error. ICRCE=1 indicates a CRC error occurred during FIS transmission or FIS reception.
UNC
Uncorrectable Data Error. UNC=1 indicates an uncorrectable data error has been encountered.
IDNF (IDN)
ID Not Found. IDN=1 indicates the requested sector’s ID field could not be found.
ABRT (ABT)
Aborted Command. ABT=1 indicates the requested command has been aborted due to a device status error or an invalid parameter in an output register.
TK0NF (T0N)
Track 0 Not Found. T0N=1 indicates track 0 was not found during a Recalibrate command.
AMNF (AMN)
Address Mark Not Found. This product does not report this error. This bit is always zero.
Table 29 Error Register
This register contains status from the last command executed by the device, or a diagnostic code. At the completion of any command except Execute Device Diagnostic, the contents of this register are valid always
even if ERR=0 in the Status Register. Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register contains a
diagnostic code. See 9.2 Diagnostic and Reset considerations n page 54 for the definition.
8.8 Features Register
This register is command specific. This is used with the Set Features command, SMART Function Set command and Format Unit command.
8.9 Sector Count Register
This register contains the number of sectors of data requested to be transferred on a read or write operation between the host and the device. If the value in the register is set to 0, a count of 256 sectors (in 28-bit addressing) or 65,536 sectors (in 48-bit addressing) is specified.
If the register is zero at command completion, the command was successful. If not successfully completed, the register contains the number of sectors which need to be transferred in order to complete the request.
The contents of the register are defined otherwise on some commands. These definitions are given in the command descriptions.
8.10 Sector Number Register
This register contains the starting sector number for any disk data access for the subsequent command. The sector number is from one to the maximum number of sectors per track.
In LBA mode, this register contains Bits 0-7. At the end of the command, this register is updated to reflect the current LBA Bits 0-7.
When 48-bit commands are used, the “most recently written” content contains LBA Bits 0-7, and the “previous content” contains Bits 24-31.
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8.11 Status Register
Status Register
7 6 5 4 3 2 1
0
BSY
DRDY
DF
DSC
/SERV
DRQ
CORR
IDX
ERR
Bit Definitions
BSY
Busy. BSY=1 whenever the device is accessing the registers. The host should not read or write any registers when BSY=1. If the host reads any register when BSY=1, the contents of the Status Register will be returned.
DRDY (RDY)
Device Ready. RDY=1 indicates that the device is capable of responding to a command. RDY will be set to 0 during power on until the device is ready to accept a command. If the device detects an error while processing a command, RDY is set to 0 until the Status Register is read by the host, at which time RDY is set back to 1.
DF
Device Fault. This product does not support DF bit. DF bit is always zero.
DSC
Device Seek Complete. DSC=1 indicates that a seek has completed and the device head is settled over a track. DSC is set to 0 by the device just before a seek begins. When an error occurs, this bit is not changed until the Status Register is read by the host, at which time the bit again indicates the current seek complete status.
When the device enters into or is in Standby mode or Sleep mode, this bit is set by device in spite of not spinning up.
SERV (SRV)
Service. This product does not support SERV bit.
DRQ
Data Request. DRQ=1 indicates that the device is ready to transfer a word or byte of data between the host and the device. The host should not write the Command register when DRQ=1.
CORR (COR)
Corrected Data. Always 0.
IDX
Index. IDX=1 once per revolution. Since IDX=1 only for a very short time during each revolution, the host may not see it set to 1 even if the host is reading the Status Register continuously. Therefore, the host should not attempt to use IDX for timing purposes.
ERR
Error. ERR=1 indicates that an error occurred during execution of the previous command. The Error Register should be read to determine the error type. The device sets ERR=0 when the next command is received from the host.
Table 30 Status Register
This register contains the device status. The contents of this register are updated whenever an error occurs and at the completion of each command.
If the host reads this register when an interrupt is pending, it is considered to be the interrupt acknowledge. Any pending interrupt is cleared whenever this register is read.
If BSY=1, no other bits in the register are valid.
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9 General Operation Descriptions
Power On Reset (POR)
The device executes a series of electrical circuitry diagnostics.
COMRESET
COMRESET is issued in Serial ATA bus. The device resets the interface circuitry as well as Soft Reset.
Soft Reset (Software Reset)
SRST bit in the Device Control Register is set, and then is reset. The device resets the interface circuitry according to the Set Features requirement.
POR
COMRESET
Soft Reset
Aborting Host interface
- o o
Aborting Device operation
-
(*1)
(*1)
Initialization of hardware
o x x
Internal diagnostic
o x x
Spinning spindle
(*6) x x
Initialization of registers (*2)
o o o
Reverting programmed parameters to default
o
(*3)
(*3)
- Number of CHS
(set by Initialize Device Parameter)
- Multiple mode
- Write cache
- Read look-ahead
- ECC bytes
Disable Standby timer
o x x
Power mode
(*5)
(*4)
(*4)
9.1 Reset Response
There are three types of reset in ATA as follows:
The actions of each reset are shown in Table 31.
Table 31 Reset Response
Table Notes (*1) Execute after the data in write cache has been written. (*2) Default value on POR is shown in Table 33 Default Register Values on page 53. (*3) The Set Features command with Feature register = CCh enables the device to revert these parameters to
the power on defaults.
(*4) In the case of Sleep mode, the device goes to Standby mode. In other case, the device does not change
current mode.
(*5) Idle when Power-Up in Standby feature set is disabled. Standby when Power-Up in Standby feature set is
enabled.
(*6) Spinning up when Power-Up in Standby feature set is disabled. Standby when Power-Up in Standby feature
set is enabled.
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o ---- Execute
x ---- Not execute
Page 53
9.1.1 Register Initialization
Register
Default Value
Error
Diagnostic Code
Sector Count
01h
Sector Number
01h
Cylinder Low
00h
Cylinder High
00h
Device/Head
00h
Status
50h
Alternate Status
50h
Code
Description
01h
No error Detected
02h
Formatter device error
03h
Sector buffer error
04h
ECC circuitry error
05h
Controller microprocessor error
Table 32 Default Register Values
After power on, hard reset, or software reset, the register values are initialized as shown in Table 32.
Table 33 Diagnostic Codes
The meaning of the Error Register diagnostic codes resulting from power on, hard reset or the Execute Device Diagnostic command is shown in Table 33.
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9.2 Diagnostic and Reset considerations
Device/Head
LBA bits
27-24
Cylinder High
LBA bits
23-16
Cylinder Low
LBA bits
15- 8
Sector Number
LBA bits
7- 0
In each case of Power on Reset, COMRESET, Soft reset, and EXECUTE DEVICE DIAGNOSTIC command, the device is diagnosed. And Error register is set as shown in Table 33.
9.3 Sector Addressing Mode
All addressing of data sectors recorded on the device’s media is by a logical sector address. The logical CHS address
for HUS7260xxALA61n is different from the actual physical CHS location of the data sector on the disk media. All addressing of data sectors recorded on the device’s media.
HUS7260xxALA61n support both Logical CHS Addressing Mode and LBA Addressing Mode as the sector addressing mode.
The host system may select either the currently selected CHS translation addressing or LBA addressing on a command-by-command basis by using the L bit in the DEVICE/HEAD register. So a host system must set the L bit to 1 if the host uses LBA Addressing mode.
9.3.1 Logical CHS Addressing Mode
The logical CHS addressing is made up of three fields: the cylinder number, the head number and the sector number. Sectors are numbered from 1 to the maximum value allowed by the current CHS translation mode but can not exceed 255(0FFh). Heads are numbered from 0 to the maximum value allowed by the current CHS translation mode but can not exceed 15(0Fh). Cylinders are numbered from 0 to the maximum value allowed by the current CHS translation mode but cannot exceed 65535(0FFFFh).
When the host selects a CHS translation mode using the INITIALIZE DEVICE PARAMETERS command, the host requests the number of sectors per logical track and the number of heads per logical cylinder. The device then computes the number of logical cylinders available in requested mode.
The default CHS translation mode is described in the Identify Device Information. The current CHS translation mode also is described in the Identify Device Information.
9.3.2 LBA Addressing Mode
Logical sectors on the device shall be linearly mapped with the first LBA addressed sector (sector 0) being the same sector as the first logical CHS addressed sector (cylinder 0, head 0, sector 1). Irrespective of the logical CHS translation mode currently in effect, the LBA address of a given logical sector does not change. The following is always true:
LBA = ( (cylinder * heads_per_cylinder + heads)
* sectors_per_track ) + sector - 1
Where heads_per_cylinder and sectors_per_track are the current translation mode values.
On LBA addressing mode, the LBA value is set to the following register.
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9.4 Power Management Feature
The power management feature set allows an application client to modify the behavior of a device in a manner that reduces the power required to operate. The power management feature set provides a set of commands and a timer that enables a device to implement low power consumption modes.
The Power Management feature set implements the following set of functions.
1. A Standby timer
2. Idle command
3. Idle Immediate command
4. Sleep command
5. Standby command
6. Standby Immediate command
9.4.1 Power Mode
The lowest power consumption when the device is powered on occurs in Sleep Mode. When in sleep mode, the device requires a reset to be activated.
In Idle Mode the device is capable of responding immediately to media access requests. In Active Mode the device is under executing a command or accessing the disk media with read look-ahead function
or writes cache function.
9.4.1.1 Active Idle mode
The electronics repeats on and off. And heads are flowing and seek, however the spindle is still rotated at the full speed.
9.4.1.2 Low Power Idle mode
Additional electronics are powered off, and heads are unloaded on the ramp, however the spindle is still rotated at the full speed.
9.4.1.3 Low RPM Idle mode
The heads are unloaded on the ramp, and the spindle is rotated at the 85-90% of the full speed.
9.4.1.4 Standby Mode
The device interface is capable of accepting commands, but as the media may not immediately accessible, there is a delay while waiting for the spindle to reach operating speed.
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9.4.2 Power Management Commands
Mode
BSY
RDY
Interface active
Media
Active x x Yes
Active
Idle 0 1 Yes
Active
Standby
0 1
Yes
Inactive
sleep x x No
Inactive
The Check Power Mode command allows a host to determine if a device is in, going, to or leaving standby or idle mode.
The Idle and Idle Immediate commands move a device to idle mode immediately from the active or standby modes. The idle command also sets the standby timer count and enables or disables the standby timer.
The Standby and Standby Immediate commands move a device to standby mode immediately from the active or idle modes. The standby command also sets the standby timer count and enables or disables the Standby timer.
The Sleep command moves a device to sleep mode. The device’s interface becomes inactive after the device reports command completion for the sleep command. A device only transitions from sleep mode after processing hardware reset, a software reset.
9.4.3 Standby timer
The standby timer provides a method for the device to automatically enter standby mode from either active or idle mode following a host programmed period of inactivity. If the device is in the active or idle mode, the device waits for the specified time period and if no command is received, the device automatically enters the standby mode.
If the value of SECTOR COUNT Register on Idle command or Standby command is set to 00h, the standby timer is disabled.
9.4.4 Interface Capability for Power Modes
Each power mode affects the physical interface as defined in the following table:
Table 34 Power conditions
Ready (RDY) is not a power condition. A device may post ready at the interface even though the media may not be accessible.
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9.5 SMART Function
The intent of Self-monitoring, analysis and reporting technology (SMART) is to protect user data and prevent unscheduled system downtime that may be caused by predictable degradation and/or fault of the device. By monitoring and storing critical performance and calibration parameters, SMART devices employ sophisticated data analysis algorithms to predict the likelihood of near-term degradation or fault condition. By alerting the host system of a negative reliability status condition, the host system can warn the user of the impending risk of a data loss and advise the user of appropriate action.
9.5.1 Attributes
Attributes are the specific performance or calibration parameters that are used in analyzing the status of the device.
Attributes are selected by the device manufacturer based on that attribute’s ability to contribute to the prediction of
degrading or faulty conditions for that particular device. The specific set of attributes being used and the identity of these attributes is vendor specific and proprietary.
9.5.2 Attribute values
Attribute values are used to represent the relative reliability of individual performance or calibration attributes. The valid range of attribute values is from 1 to 253 decimal. Higher attribute values indicate that the analysis algorithms being used by the device are predicting a lower probability of a degrading or faulty condition existing. Accordingly, lower attribute values indicate that the analysis algorithms being used by the device are predicting a higher probability of a degrading or faulty condition existing.
9.5.3 Attribute thresholds
Each attribute value has a corresponding attribute threshold limit which is used for direct comparison to the attribute value to indicate the existence of a degrading or faulty condition. The numerical values of the attribute thresholds are determined by the device manufacturer through design and reliability testing and analysis. Each attribute threshold represents the lowest limit to which its corresponding attribute value can be equal while still retaining a positive
reliability status. Attribute thresholds are set at the device manufacturer’s factory and cannot be changed in the field.
The valid range for attribute thresholds is from 1 through 253 decimal.
9.5.4 Threshold exceeded condition
If one or more attribute values, whose Pre-failure bit of their status flag is set, are less than or equal to their corresponding attribute thresholds, then the device reliability status is negative, indicating an impending degrading or faulty condition.
9.5.5 SMART commands
The SMART commands provide access to attribute values, attribute thresholds and other logging and reporting information.
9.5.6 Off-line Read Scanning
The device provides the off-line read scanning feature with reallocation. This is the extension of the off-line data collection capability. The device performs the entire read scan with reallocation for the marginal sectors to prevent the user data lost.
If interrupted by the host during the read scanning, the device services the host command.
9.5.7 Error Log
Logging of reported errors is supported. The device provides information on the last five errors that the device reported as described in SMART error log sector. The device may also provide additional vendor specific information on these reported errors. The error log is not disabled when SMART is disabled. Disabling SMART shall disable the delivering of error log information via the SMART READ LOG SECTOR command.
If a device receives a firmware modification, all error log data is discarded and the device error count for the life of the device is reset to zero.
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9.5.8 Self-test
The device provides the self-test features which are initiated by SMART Execute Off-line Immediate command. The self-test checks the fault of the device, reports the test status in Device Attributes Data and stores the test result in the SMART self-test log sector as described in SMART self-test log data structure. All SMART attributes are updated accordingly during the execution of self-test.
If interrupted by the host during the self-tests, the device services the host command. If the device receives a firmware modification, all self-test log data is discarded.
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9.6 Security Mode Feature Set
Security Set Password
(‘F1’h)
Security Unlock
(‘F2’h)
Security Erase Prepare
(‘F3’h)
Security Erase Unit
(‘F4’h)
Security Freeze Lock
(‘F5’h)
Security Disable Password
(‘F6’h)
Device Locked mode
The device disables media access commands after power on. Media accesses commands are enabled by either a security unlock command or a security erases unit command.
Device Unlocked mode
The device enables all commands. If a password is not set this mode is entered after power on, otherwise it is entered by a security unlock or a security erases unit command.
Device Frozen mode
The device enables all commands except those which can update the device lock function, set/change password. The device enters this mode via a Security Freeze Lock command. It cannot quit this mode until power off.
High level security
When the device lock function is enabled and the User Password is forgotten the device can be unlocked via a Master Password.
Maximum level security
When the device lock function is enabled and the User Password is forgotten then only the Master Password with a Security Erase Unit command can unlock the device. Then user data is erased.
Master Password
When the Master Password is set, the device does NOT enable the Device Lock Function, and the device can NOT be locked with the Master Password, but the Master Password can be used for unlocking the device locked.
Identify Device Information word 92 contains the value of the Master Password Revision Code set when the Master Password was last changed. Valid values are 0001h through FFFEh.
User Password
The User Password should be given or changed by a system user. When the User Password is set, the device enables the Device Lock Function, and then the device is locked on next power on reset or hard reset.
Security Mode Feature Set is a powerful security feature. With a device lock password, a user can prevent unauthorized access to hard disk device even if the device is removed from the computer.
The following commands are supported for this feature.
9.6.1 Security mode
Following security modes are provided.
9.6.2 Security Level
Following security levels are provided.
9.6.3 Password
This function can have 2 types of passwords as described below.
The system manufacturer/dealer who intends to enable the device lock function for the end users, must set the master password even if only single level password protection is required.
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9.6.4 Operation example
(ref.)
< Setting Password > < No Setting Password >
POR POR
Set Password with User Password
Normal Operation Normal Operation
Power off Power off
POR Device locked mode POR Device locked mode
9.6.4.1 Master Password setting
The system manufacturer/dealer can set a new Master Password from default Master Password using the Security Set Password command, without enabling the Device Lock Function.
The Master Password Revision Code is set to FFFEh as shipping default by the HDD manufacturer
9.6.4.2 User Password setting
When a User Password is set, the device will automatically enter lock mode the next time the device is powered on.
Figure 11 Initial Setting
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9.6.4.3 Operation from POR after User Password is set
POR
Device Locked mode
Unlock CMD Erase Prepare Media access
command (*1)
Non-Media access
command (*1)
Password Match ?
Complete Erase Unit
Lock function Disable
Enter Device Unlock mode
Erase Unit Password Match ?
Normal operation : All commands are available
Freeze Lock command
Enter Device Frozen mode Normal Operation except Set Password, Disable Password, Erase Unit, Unlock commands.
Reject
Complete
N
Y
N
Y
When Device Lock Function is enabled, the device rejects media access command until a Security Unlock command is successfully completed.
Figure 12 Usual Operation
(*1) Refer to 9.6.5 on the page.63
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9.6.4.4 User Password Lost
User Password Lost
LEVEL ?
High
Unlock CMD with Master Password
Maximum
Normal operation
Erase Prepare Command Erase Unit Command
with Master Password
Normal operation but data lost
If the User Password is forgotten and High level security is set, the system user can’t access any data. However, the
device can be unlocked using the Master Password. If a system user forgets the User Password and Maximum security level is set, data access is impossible. However,
the device can be unlocked using the Security Erase Unit command to unlock the device and erase all user data with the Master Password.
Figure 13 Password Lost
9.6.4.5 Attempt limit for SECURITY UNLOCK command
The SECURITY UNLOCK command has an attempt limit. The purpose of this attempt limit is to prevent that someone attempts to unlock the drive by using various passwords many times.
The device counts the password mismatch. If the password does not match, the device counts it up without distinguishing the Master password and the User password. If the count reaches 5, EXPIRE bit (bit 4) of Word 128 in Identify Device information is set, and then SECURITY ERASE UNIT command and SECURITY UNLOCK command are aborted until a hard reset or a power off. The count and EXPIRE bit are cleared after a power on reset or a hard reset.
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9.6.5 Command Table
Command
Locked Mode
Unlocked Mode
Frozen Mode
Check Power Mode
Executable
Executable
Executable
Configure Stream
Command aborted
Executable
Executable
Crypto Scramble Ext
Command aborted
Executable
Executable
Device Configuration Restore
Command aborted
Executable
Executable
Device Configuration Freeze Lock
Command aborted
Executable
Executable
Device Configuration Identify
Command aborted
Executable
Executable
Device Configuration Set
Command aborted
Executable
Executable
Download Microcode
Command aborted
Executable
Executable
Download Microcode DMA
Command aborted
Executable
Executable
Execute Device Diagnostic
Executable
Executable
Executable
Flush Cache
Command aborted
Executable
Executable
Flush Cache Ext
Command aborted
Executable
Executable
Format Track
Command aborted
Executable
Executable
Identify Device
Executable
Executable
Executable
Idle
Executable
Executable
Executable
Idle Immediate
Executable
Executable
Executable
Initialize Device Parameters
Executable
Executable
Executable
NCQ Queue Management
Command aborted
Executable
Executable
Overwrite Ext
Command aborted
Executable
Executable
Read Buffer
Executable
Executable
Executable
Read DMA
Command aborted
Executable
Executable
Read DMA Ext
Command aborted
Executable
Executable
Read FPDMA Queued
Command aborted
Executable
Executable
Read Log Ext
Executable
Executable
Executable
Read Log DMA Ext
Executable
Executable
Executable
Read Multiple
Command aborted
Executable
Executable
Read Multiple Ext
Command aborted
Executable
Executable
Read Native Max Address
Executable
Executable
Executable
Read Native Max Ext
Executable
Executable
Executable
Read Sector(s)
Command aborted
Executable
Executable
Read Sector(s) Ext
Command aborted
Executable
Executable
Read Stream DMA Ext
Command aborted
Executable
Executable
Read Stream Ext
Command aborted
Executable
Executable
Read Verify Sector(s)
Command aborted
Executable
Executable
Read Verify Sector(s) Ext
Command aborted
Executable
Executable
Recalibrate
Executable
Executable
Executable
Request Sense Data Ext
Executable
Executable
Executable
Sanitize Freeze Lock Ext
Command aborted
Executable
Executable
Sanitize Status Ext
Executable
Executable
Executable
This table shows the device’s response to commands when the Security Mode Feature Set (Device lock function) is
enabled.
Table 35 Command table for device lock operation -1
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Command
Locked Mode
Unlocked Mode
Frozen Mode
SCT Read/Write Long
Command aborted
Command aborted
Command aborted
SCT Write Same
Command aborted
Executable
Executable
SCT Error Recovery Control
Command aborted
Executable
Executable
SCT Feature Control
Command aborted
Executable
Executable
SCT Data Table
Command aborted
Executable
Executable
SCT Read Status
Executable
Executable
Executable
Security Disable Password
Command aborted
Executable
Command aborted
Security Erase Prepare
Executable
Executable
Command aborted
Security Erase Unit
Executable
Executable
Command aborted
Security Freeze Lock
Command aborted
Executable
Executable
Security Set Password
Command aborted
Executable
Command aborted
Security Unlock
Executable
Executable
Command aborted
Seek
Executable
Executable
Executable
Set Features
Executable
Executable
Executable
Set Max Address
Command aborted
Executable
Executable
Set Max Address Ext
Command aborted
Executable
Executable
Set Multiple Mode
Executable
Executable
Executable
Sleep
Executable
Executable
Executable
SMART Disable Operations
Executable
Executable
Executable
SMART Enable/Disable Attribute Autosave
Executable
Executable
Executable
SMART Enable Operations
Executable
Executable
Executable
SMART Execute Off-line Immediate
Executable
Executable
Executable
SMART Read Attribute Values
Executable
Executable
Executable
SMART Read Attribute Thresholds
Executable
Executable
Executable
SMART Return Status
Executable
Executable
Executable
SMART Save Attribute Values
Executable
Executable
Executable
SMART Read Log Sector
Executable
Executable
Executable
SMART Write Log Sector
Executable
Executable
Executable
SMART Enable/Disable Automatic Off-Line
Executable
Executable
Executable
Standby
Executable
Executable
Executable
Standby Immediate
Executable
Executable
Executable
Write Buffer
Executable
Executable
Executable
Write DMA
Command aborted
Executable
Executable
Write DMA Ext
Command aborted
Executable
Executable
Write DMA FUA Ext
Command aborted
Executable
Executable
Write FPDMA Queued
Command aborted
Executable
Executable
Write Log Ext
Command aborted
Executable
Executable
Write Log DMA Ext
Command aborted
Executable
Executable
Table 36 Command table for device lock operation -2
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Command
Locked Mode
Unlocked Mode
Frozen Mode
Write Multiple
Command aborted
Executable
Executable
Write Multiple Ext
Command aborted
Executable
Executable
Write Multiple FUA Ext
Command aborted
Executable
Executable
Write Sector(s)
Command aborted
Executable
Executable
Write Sector(s) Ext
Command aborted
Executable
Executable
Write Stream DMA Ext
Command aborted
Executable
Executable
Write Stream Ext
Command aborted
Executable
Executable
Write Uncorrectable Ext
Command aborted
Executable
Executable
Table 37 Command table for device lock operation -3
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9.7 Host Protected Area Feature
Read Native Max ADDRESS
(‘F8’h)
Set Max ADDRESS
(‘F9’h)
Capacity (native)
:
6,498,680,832
byte (6.4GB)
Max LBA (native)
:
12,692,735
(0FFFFFh)
Required size for protected area
:
206,438,400
byte
Required blocks for protected area
:
403,200
(062700h)
Customer usable device size
:
6,292,242,432
byte (6.2GB)
Customer usable sector count
:
12,289,536
(BB8600h)
LBA range for protected area
:
BB8600h to C1ACFFh
Host Protected Area Feature is to provide the ‘protected area’ which cannot be accessed via conventional method.
This ‘protected area’ is used to contain critical system data such as BIOS or system management information. The contents of entire system main memory may also be dumped into ‘protected area’ to resume after system power off.
The LBA/CYL changed by following command affects the Identify Device Information. The following set of commands is implemented for this function.
9.7.1 Example for operation (In LBA mode)
Assumptions: For better understanding, the following example uses actual values for LBA, size, etc. Since it is just an example,
these values could be different.
Device characteristics
1. Shipping HDDs from HDD manufacturer When the HDDs are shipped from HDD manufacturer, the device has been tested to have usable capacity of
6.4GB besides flagged media defects not to be visible by system.
2. Preparing HDDs at system manufacturer Special utility software is required to define the size of protected area and store the data into it.
The sequence is:
Issue Read Native Max Address command to get the real device maximum LBA. Returned value shows that native device Maximum LBA is 12,692,735 (C1ACFFh) regardless of the current setting.
Make entire device be accessible including the protected area by setting device Maximum LBA as 12,692,735 (C1ACFFh) via Set Max Address command. The option could be either nonvolatile or volatile.
Test the sectors for protected area (LBA >= 12,289,536 (BB8600h)) if required.
Write information data such as BIOS code within the protected area. Change maximum LBA using Set Max Address command to 12,289,535 (BB85FFh) with nonvolatile option. From this point, the protected area cannot be accessed till next Set Max Address command is issued. Any
BIOSes, device drivers, or application software access the HDD as if that is the 6.2GB device because the device acts exactly the same as real 6.2GB device does.
3. Conventional usage without system software support Since the HDD works as 6.2GB device, there is no special care to use this device for normal use.
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4. Advanced usage using protected area The data in the protected area is accessed by following.
Issue Read Native Max Address command to get the real device maximum LBA. Returned value shows that native device Maximum LBA is 12,692,735 (C1ACFFh) regardless of the current setting.
Make entire device be accessible including the protected area by setting device Maximum LBA as 12,692,735 (C1ACFFh) via Set Max Address command with volatile option. By using this option, unexpected power removal or reset will not make the protected area remained accessible.
Read information data from protected area.
Issue hard reset or POR to inhibit any access to the protected area.
9.7.2 Security extensions
1. Set Max Set Password
2. Set Max Lock
3. Set Max Freeze Lock
4. Set Max Unlock.
The Set Max Set Password command allows the host to define the password to be used during the current power on cycle. The password does not persist over a power cycle but does persist over a hardware or software reset. This password is not related to the password used for the Security Mode Feature set. When the password is set the device is in the Set_Max_Unlocked mode. The Set Max Lock command allows the host to disable the Set Max commands (except set Max Unlock) until the next power cycle or the issuance and acceptance of the Set Max Unlock command. When this command is accepted the device is in the Set_Max_Locked mode. The Set Max Unlock command changes the device from the Set_Max_Locked mode to the Set_Max_Unlocked mode. The Set Max Freeze Lock command allows the host to disable the Set Max commands (including Set Max UNLOCK) until the next power cycle. When this command is accepted the device is in the Set_Max_Frozen mode.
The IDENTIFY DEVICE response word 83, bit 8 indicates that this extension is supported if set, and word 86, bit 8 indicate the Set Max security extension enabled if set.
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9.8 Write Cache Function
Write cache is a performance enhancement whereby the device reports as completing the write command (Write Sector(s), Write Multiple and Write DMA) to the host as soon as the device has received all of the data into its buffer. And the device assumes responsibility to write the data subsequently onto the disk.
While writing data after completed acknowledgment of a write command, soft reset or hard reset does not affect
its operation. But power off terminates writing operation immediately and unwritten data are to be lost.
Soft reset, Standby (Immediate) command and Flush Cache commands during writing the cached data are
executed after the completion of writing to media. So the host system can confirm the completion of write cache operation by issuing Soft reset, Standby (Immediate) command or Flush Cache command to the device before power off.
9.9 Reassign Function
The reassign Function is used with read commands and write commands. The sectors of data for reassignment are prepared as the spare data sector.
This reassignment information is registered internally, and the information is available right after completing the reassign function. Also the information is used on the next power on reset or hard reset.
If the number of the spare sector reaches 0 sectors, the reassign function will be disabled automatically. The spare tracks for reassignment are located at regular intervals from Cylinder 0. As a result of reassignment, the
physical location of logically sequenced sectors will be dispersed.
9.9.1 Auto Reassign Function
The sectors those show some errors may be reallocated automatically when specific conditions are met. The spare tracks for reallocation are located at regular intervals from Cylinder 0. The conditions for auto-reallocation are described below.
Non-recovered write errors
When a write operation cannot be completed after the Error Recovery Procedure (ERP) is fully carried out, the sector(s) are reallocated to the spare location. An error is reported to the host system only when the write cache is disabled and the auto reallocation is failed.
If the write cache function is ENABLED, and when the number of available spare sectors reaches 0 sectors, both auto reassign function and write cache function are disabled automatically.
Non-recovered read errors When a read operation is failed after defined ERP is fully carried out, a hard error is reported to the host system. This location is registered internally as a candidate for the reallocation. When a registered location is specified as a target of a write operation, a sequence of media verification is performed automatically. When the result of this verification meets the criteria, this sector is reallocated.
Recovered read errors When a read operation for a sector failed once then recovered at the specific ERP step, this sector of data is reallocated automatically. A media verification sequence may be run prior to the relocation according to the pre­defined conditions.
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9.10 Power-up in Standby feature set
Power-Up In Standby feature set allows devices to be powered-up into the Standby power management state to minimize inrush current at power-up and to allow the host to sequence the spin-up of devices.
This feature set will be enabled/disabled via the SET FEATURES command. The enabling of this feature set shall be persistent after power cycle.
A device needs a SET FEATURES subcommand to spin-up to active state when the device has powered-up into Standby. The device remains in Standby until the SET FEATURES subcommand is received.
If power-up into Standby is enabled, when an IDENTIFY DEVICE is received while the device is in Standby as a result of powering up into Standby, the device shall set word 0 bit 2 to one to indicate that the response is incomplete, then only words 0 and 2 are correctly reported.
The IDENTIFY DEVICE information indicates the states as follows:
identify device information is complete or incomplete this feature set is implemented this feature set is enabled or disabled the device needs the Set Features command to spin-up into active state
9.11 Advanced Power Management feature set (APM)
This feature allows the host to select an advanced power management level. The advanced power management level is a scale from the lowest power consumption setting of 01h to the maximum performance level of FEh. Device performance may increase with increasing advanced power management levels. Device power consumption may increase with increasing advanced power management levels. The advanced power management levels contain discrete bands, described in the section of Set Feature command in detail. This feature set uses the following functions:
1. A SET FEATURES subcommand to enable Advanced Power Management
2. A SET FEATURES subcommand to disable Advanced Power Management
Advanced Power Management is independent of the Standby timer setting. If both Advanced Power Management
and the Standby timer are set, the device will go to the Standby state when the timer times out or the device’s
Advanced Power Management algorithm indicates that the Standby state should be entered. The IDENTIFY DEVICE response word 83, bit 3 indicates that Advanced Power Management feature is supported if
set. Word 86, bit 3 indicates that Advanced Power Management is enabled if set. Word 91, bits 7-0 contain the current Advanced Power Management level if Advanced Power Management is enabled.
9.12 48-bit Address Feature Set
The 48-bit Address feature set allows devices:
a) with capacities up to 281,474,976,710,655 logical sectors (i.e., up to 144,115,188,075,855,360 bytes for a
512-byte logical block device); and
b) to transfer up to 65 536 logical sectors in a single command.
The 48-bit Address feature set operates in LBA addressing only. Devices also implement commands using 28-bit addressing, and 28-bit and 48-bit commands may be intermixed. Support of the 48-bit Address feature set is indicated in the Identify Device response bit 10 words 83. In addition, the maximum user LBA address accessible by 48-bit addressable commands is contained in Identify Device response words 230 through 233. When the 48-bit Address feature set is implemented, the native maximum address is the value returned by a Read Native Max Address Ext command. If the native maximum address is equal to or less than 268,435,455, a Read Native Max Address shall return the native maximum address. If the native maximum address is greater than 268,435,455, a Read Native Max Address shall return a value of 268,435,455.
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9.13 Streaming feature Set
The Streaming feature set is an optional feature set that allows a host to request delivery of data from a contiguous logical block address range within an allotted time. This places a priority on time to access the data rather than the integrity of the data. Streaming feature set commands only support 48-bit addressing.
A device that implements the Streaming feature set shall implement the following minimum set of commands:
Configure Stream Read Stream Ext Write Stream Ext Read Stream DMA Ext Write Stream DMA Ext Read Log Ext
Support of the Streaming feature set is indicated in Identify Device work 84 bit 4.
Note that PIO versions of these commands limit the transfer rate (16.6 MB/s), provide no CRC protection, and limit status reporting as compared to a DMA implementation.
9.13.1 Streaming commands
The streaming commands are defined to be time critical data transfers rather than the standard data integrity critical commands. Each command shall be completed within the time specified in the Configure Stream command or in the streaming command itself in order to ensure the stream requirements of the AV type application. The device may execute background tasks as long as the Read Stream and Write Stream command execution time limits are still met.
Using the Configure Stream command, the host may define the various stream properties including the default Command Completion Time Limit (CCTL) to assist the device in setting up its caching for best performance. If the host does not use a Configure Stream command, the device shall use the CCTL specified in each streaming command, and the time limit is effective for one time only. If the CCTL is not set by Configure Stream command, the operation of a streaming command with a zero CCTL is device vendor specific. If Stream ID is not set by a Configure Stream command, the device shall operate according to the Stream ID set by the streaming command. The operation is device vendor specific.
The streaming commands may access any user LBA on a device. These commands may be interspersed with non­streaming commands, but there may be an impact on performance due to the unknown time required to complete the non-streaming commands.
The streaming commands should be issued using a specified minimum number of sectors transferred per command, as specified in word 95 of the Identify Device response. The transfer length of a request should be a multiple of the minimum number of sectors per transfer.
The host provided numeric stream identifier, Stream ID, may be used by the device to configure its resources to support the streaming requirements of the AV content. One Stream ID may be configured for each read and write operation with different command completion time limits be each Configure Stream command.
9.13.1.1 Urgent bit
The Urgent bit in the Read Stream and Write Stream commands specifies that the command should be completed in the minimum possible time by the device and shall be completed within the specified Command Completion Time Limit.
9.13.1.2 Flush to Disk bit
The Flush to Disk bit in the Write Stream command specifies that all data for the specified stream shall be flushed to the media before posting command completion. If a host requests flushes at times other than the end of each Allocation Unit, streaming performance may be degraded. The Set Features command to enable/disable caching shall not affect caching for streaming commands.
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9.13.1.3 Not Sequential bit
The Not Sequential bit specifies that the next read stream command with the same Stream ID may not be sequential in LBA space. This information helps the device with pre-fetching decisions.
9.13.1.4 Read Continuous bit
If the Read Continuous bit is set to one for the command, the device shall transfer the requested amount of data to the host within the Command Completion Time Limit even if an error occurs. The data sent to the host by the device in an error condition is vendor specific.
9.13.1.5 Write Continuous bit
If the Write Continuous bit is set to one for the command, and an error is encountered, the device shall complete the request without posting an error. If an error cannot be resolved within the Command Completion Time Limit, the erroneous section on the media may be unchanged or may contain undefined data. A future read of this area may not report an error, even though the data is erroneous.
9.13.1.6 Handle Streaming Error bit
The Handle Streaming Error bit specifies to the device that this command starts at the LBA of a recently reported error section, so the device may attempt to continue its corresponding error recovery sequence where it left off earlier. This mechanism allows the host to schedule error recovery and defect management for content critical data.
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9.14 SATA BIST (Built-in Self Test)
The device supports the following BIST modes, and begins operations when it receives BIST Activate FIS.
F – Far End Analog Loopback. L – Far End Retimed Loopback T – Far End Transmit only A – ALIGN Bypass (valid only in combination with T bit) S – Bypass Scrambling (valid only in combination with T bit)
9.15 SATA Interface Power Management
The device supports both receiving host-initiated interface power management requests and initiating interface power management. The device initiates interface power management when the device enters its power saving mode whose power consumption is lower than Idle mode.
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9.16 Software Setting Preservation
When a device is enumerated, software will configure the device using SET FEATURES and other commands. These software settings are often preserved across software reset but not necessarily across hardware reset. In Parallel ATA, only commanded hardware resets can occur, thus legacy software only reprograms settings that are cleared for the particular type of reset it has issued. In Serial ATA, COMRESET is equivalent to hard reset and a non-commanded COMRESET may occur if there is an asynchronous loss of signal. Since COMRESET is equivalent to hardware reset, in the case of an asynchronous loss of signal some software settings may be lost without legacy software knowledge. In order to avoid losing important software settings without legacy driver knowledge, the software settings preservation ensures that the value of important software settings is maintained across a COMRESET. Software settings preservation may be enabled or disabled using SET FEATURES with a subcommand code of 06h. If a device supports software settings preservation, the feature shall be enabled by default.
9.16.1 COMRESET Preservation Requirements
The software settings that shall be preserved across COMRESET are listed below. The device is only required to preserve the indicated software setting if it supports the particular feature/command the setting is associated with.
INITIALIZE DEVICE PARAMETERS: Device settings established with the INITIALIZE DEVICE PARAMETERS command.
Power Management Feature Set Standby Timer: The Standby timer used in the Power Management feature set. Read/Write Stream Error Log: The Read Stream Error Log and Write Stream Error Logs (accessed using READ
LOG EXT and WRITE LOG EXT). Security mode state: The security mode state established by Security Mode feature set commands (refer to section
6.13 of the ATA/6 specification). The device shall not transition to a different security mode state based on a
COMRESET. For example, the device shall not transition from the SEC5: Unlocked / not Frozen state to state SEC4: Security enabled / Locked when a COMRESET occurs, instead the device shall remain in the SEC5: Unlocked / not Frozen state.
SECURITY FREEZE LOCK: The Frozen mode setting established by the SECURITY FREEZE LOCK command. SECURITY UNLOCK: The unlock counter that is decremented as part of a failed SECURITY UNLOCK command
attempt.
SET ADDRESS MAX (EXT): The maximum LBA specified in SET ADDRESS MAX or SET ADDRESS MAX EXT. SET FEATURES (Device Initiated Interface Power Management): The Device Initiated Interface Power
Management enable/disable setting (Word 79, bit 3 of Identify Device) established by the SET FEATURES command with a Subcommand code of 10h or 90h.
SET FEATURES (Write Cache Enable/Disable): The write cache enable/disable setting established by the SET FEATURES command with subcommand code of 02h or 82h.
SET FEATURES (Set Transfer Mode): PIO, Multiword, and UDMA transfer mode settings established by the SET FEATURES command with subcommand code of 03h.
SET FEATURES (Advanced Power Management Enable/Disable): The advanced power management enable/disable setting established by the SET FEATURES command with subcommand code of 05h or 85h. The advanced power management level established in the Sector Count register when advanced power management is enabled (SET FEATURES subcommand code 05h) shall also be preserved.
SET FEATURES (Read Look-Ahead): The read look-ahead enable/disable setting established by the SET FEATURES command with subcommand code of 55h or AAh.
SET FEATURES (Reverting to Defaults): The reverting to power-on defaults enable/disable setting established by the SET FEATURES command with a subcommand code of CCh or 66h.
SET MULTIPLE MODE: The block size established with the SET MULTIPLE MODE command. SANITIZE FREEZE LOCK MODE: The Sanitize Frozen state established by the SANITIZE FREEZE LOCK EXT
command. There are several optional features defined in Serial ATA Revision 3.0. The following shows whether these features
are supported or not.
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9.17 Serial ATA Optional Features
There are several optional features defined in Serial ATA Revision 3.0. The following shows whether these features are supported or not.
9.17.1 Asynchronous Signal Recovery
The device supports asynchronous signal recovery defined in Serial ATA Revision 3.0.
9.17.2 Device Power Connector Pin 11 Definition
Serial ATA Revision 3.0 specification defines that Pin 11 of the power segment of the device connector may be used to provide the host with an activity indication and disabling of staggered spin-up.
9.17.3 Phy Event Counters
Phy Event Counters are an optional feature to obtain more information about Phy level events that occur on the interface. This information may aid designers and integrators in testing and evaluating the quality of the interface. A device indicates whether it supports the Phy event counters feature in IDENTIFY (PACKET) DEVICE Word 76, bit 10. The host determines the current values of Phy event counters by issuing the READ LOG EXT command with a log page of 11h. The counter values shall not be retained across power cycles. The counter values shall be preserved across COMRESET and software resets.
The counters defined can be grouped into three basic categories: those that count events that occur during Data FIS transfers, those that count events that occur during non-Data FIS transfers, and events that are unrelated to FIS transfers. Counters related to events that occur during FIS transfers may count events related to host-to-device FIS transfers, device-to-host FIS transfers, or bi-directional FIS transfers. A counter that records bi-directional events is not required to be the sum of the counters that record the same events that occur on device-to-host FIS transfers and host-to-device FIS transfers.
Implementations that support Phy event counters shall implement all mandatory counters, and may support any of the optional counters as shown in Table 38. Note that some counters may increment differently based on the speed at which non-Data FIS retries are performed by the host and device. Implementations may record CRC and non-CRC error events differently. For example, there is a strong likelihood that a disparity error may cause a CRC error. Thus, the disparity error may cause both the event counter that records non-CRC events and the event counter that records CRC events to be incremented for the same event. Another example implementation difference is how a missing EOF event is recorded; a missing EOF primitive may imply a bad CRC even though the CRC on the FIS may be correct. These examples illustrate that some Phy event counters are sensitive to the implementation of the counters themselves, and thus these implementation sensitive counters cannot be used as an absolute measure of interface quality between different implementations.
9.17.3.1 Counter Reset Mechanisms
There are two mechanisms by which the host can explicitly cause the Phy counters to be reset. The first mechanism is to issue a BIST Activate FIS to the device. Upon reception of a BIST Activate FIS the device shall reset all Phy event counters to their reset value. The second mechanism uses the READ LOG EXT command. When the device receives a READ LOG EXT command for log page 11h and bit 0 in the Features register is set to one, the device shall return the current counter values for the command and then reset all Phy event counter values.
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9.17.3.2 Counter Identifiers
Identifier (Bits 11:0)
Mandatory / Optional
Description
000h
Mandatory
No counter value; marks end of counters in the page
001h
Mandatory
Command failed and ICRC bit set to one in Error register
002h
Optional
R_ERR response for Data FIS
003h
Optional
R_ERR response for Device-to-Host Data FIS
004h
Optional
R_ERR response for Host-to-Device Data FIS
005h
Optional
R_ERR response for Non-data FIS
006h
Optional
R_ERR response for Device-to-Host Non-data FIS
007h
Optional
R_ERR response for Host-to-Device Non-data FIS
008h
Optional
Not supported (Device-to-Host non-Data FIS retries)
009h
Optional
Transitions from drive PhyRdy to drive PhyNRdy
00Ah
Mandatory
Signature Device-to-Host Register FISes sent due to a COMRESET
00Bh
Optional
CRC errors within a Host-to-Device FIS
00Dh
Optional
Non-CRC errors within a Host-to-Device FIS
00Fh
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due to CRC errors)
010h
Optional
Not supported (R_ERR response for Host-to-Device Data FIS due to non-CRC errors)
012h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS due to CRC errors)
013h
Optional
Not supported (R_ERR response for Host-to-Device Non-data FIS due to non-CRC errors)
Each counter begins with a 16-bit identifier. Table 38 defines the counter value for each identifier. Any unused counter slots in the log page should have a counter identifier value of 0h. Optional counters that are not implemented shall not be returned in log page 11h. A value of ‘0’ returned for a counter means that there have been no instances of that particular event. There is no required ordering for event counters within the log page; the order is arbitrary and selected by the device vendor.
For all counter descriptions, ‘transmitted’ refers to items sent by the device to the host and ‘received’ refers to items
received by the device from the host. Bits 14:12 of the counter identifier convey the number of significant bits that counter uses. All counter values consume
a multiple of 16-bits. The valid values for bits 14:12 and the corresponding counter sizes are:
1h 16-bit counter 2h 32-bit counter 3h 48-bit counter 4h 64-bit counter
Any counter that has an identifier with bit 15 set to one is vendor specific. This creates a vendor specific range of counter identifiers from 8000h to FFFFh. Vendor specific counters shall observe the number of significant bits 14:12 as defined above.
Table 38 Phy Event Counter Identifiers
Counter Definitions
The counter definitions in this section specify the events that a particular counter identifier represents.
Identifier 000h
There is no counter associated with identifier 000h. A counter identifier of 000h indicates that there are no additional counters in the log page.
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Identifier 001h
The counter with identifier 001h returns the number of commands that returned an ending status with the ERR bit set to one in the Status register and the ICRC bit set to one in the Error register.
Identifier 002h
The counter with identifier 002h returns the sum of (the number of transmitted Device-to-Host Data FISes to which the host responded with R_ERRP) and (the number of received Host-to-Device Data FISes to which the device responded with R_ERRP).
Identifier 003h
The counter with identifier 003h returns the number of transmitted Device-to-Host Data FISes to which the host responded with R_ERRP.
Identifier 004h
The counter with identifier 004h returns the number of received Host-to-Device Data FISes to which the device responded with R_ERRP. The count returned for identifier 004h is not required to be equal to the sum of the counters with identifiers 00Fh and 010h.
Identifier 005h
The counter with identifier 005h returns the sum of (the number of transmitted Device-to-Host non-Data FISes to which the host responded with R_ERRP) and (the number of received Host-to-Device non-Data FISes to which the device responded with R_ERRP). Retries of non-Data FISes are included in this count.
Identifier 006h
The counter with identifier 006h returns the number of transmitted Device-to-Host non-Data FISes to which the host responded with R_ERRP. Retries of non-Data FISes are included in this count.
Identifier 007h
The counter with identifier 007h returns the number of received Host-to-Device non-Data FISes to which the device responded with R_ERRP. Retries of non-Data FISes are included in this count.
Identifier 009h
The counter with identifier 009h returns the number of times the device transitioned into the PHYRDY state from the PHYNRDY state, including but not limited to asynchronous signal events, power management events, and COMRESET events. If interface power management is enabled, then this counter may be incremented due to interface power management transitions.
Identifier 00Ah
The counter with identifier 00Ah returns the number of transmitted Device-to-Host Register FISes with the device reset signature in response to a COMRESET, which were successfully followed by an R_OK from the host.
Identifier 00Bh
The counter with identifier 00Bh returns the number of received Host-to-Device FISes of all types (Data and non­Data) to which the device responded with R_ERRP due to CRC error.
Identifier 00Dh
The counter with identifier 00Dh returns the number of received Host-to-Device FISes of all types (Data and non­Data) to which the devices responded with R_ERRP for reasons other than CRC error.
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9.17.3.3 READ LOG EXT Log Page 11h
Byte
7 6 5 4 3 2 1
0
0
Reserved
1
Reserved
2
Reserved
3
Reserved
…
…
n
Counter n Identifier
n+1
n+2
Counter n Value
n + Counter n Length
…
…
508
Reserved
509
510
511
Data Structure Checksum
READ LOG EXT log page 11h is one page (512 bytes) in length. The first Dword of the log page contains information that applies to the rest of the log page. Software should continue to process counters until a counter identifier with value 0h is found or the entire page has been read. A counter identifier with value 0h indicates that the log page contains no more counter values past that point. Log page 11h is defined in Table 39.
Table 39 READ LOG EXT Log Page 11h data structure definition
Counter n Identifier
Phy event counter identifier that corresponds to Counter n Value. Specifies the particular event counter that is being reported. The Identifier is 16 bits in length. Valid identifiers are listed in Table 39.
Counter n Value
Value of the Phy event counter that corresponds to Counter n Identifier. The number of significant bits is determined by Counter n Identifier bits 14:12 (as defined in Table 38). The length of Counter n Value shall always be a multiple of 16-bits. All counters are one-extended. For example, if a counter is only physically implemented as 8-bits when it reaches the maximum value of 0xFF, it shall be one-extended to 0xFFFF. The counter shall stop (and not wrap to zero) after reaching its maximum value.
Counter n Length
Size of the Phy event counter as defined by bits 14:12 of Counter n Identifier. The size of the Phy event counter shall be a multiple of 16-bits.
Data Structure Checksum
The data structure checksum is the 2’s complement of the sum of the first 511 bytes in the data structure. Each byte shall be added with unsigned arithmetic and overflow shall be ignored. The sum of all 512 bytes of the data structure will be zero when the checksum is correct.
Reserved All reserved fields shall be cleared to zero
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9.17.4 NCQ Queue Management (63h)
Register
7 6 5 4 3 2 1
0
Features(7:0)
Subcommand Specific
Subcommand
Features(15:8)
Reserved
Count(7:0)
TAG
Reserved
Count(15:8)
Reserved
LBA(7:0)
Subcommand Specific (TTAG)
Reserved
LBA(15:8)
Reserved
LBA(39:24)
LBA(23:16)
LBA(47:40)
Device
Res
1
Res
0
Reserved
Command
63h
Subcommand
Description
Reference
0h
Abort NCQ queue
11.15.1 Abort NCQ Queue Subcommand (0h)
1h
Deadline Handling
11.15.2 Deadline handling Subcommand (1h)
2h – 5h
Reserved
The NCQ Queue Management feature allows the host to manage the outstanding NCQ commands and/or affect the processing of NCQ commands.
The NCQ Queue Management command is a non-data NCQ command. Only specified NCQ Queue Management subcommands are executed as Immediate NCQ commands.
NCQ Queue Management cmd, LBA fields should not be set to reserved. LBA fields are optionally used in SetFeatures cmd. If NCQ is disabled and an NCQ Queue Management command is issued to the device, then the device aborts the
command with the ERR bit set to one in the Status register and the ABRT bit set to one in the Error register. This command is prohibited for devices that implement the PACKET feature set. The queuing behavior of the device depends on which subcommand is specified.
Table 40 NCQ Queue Management - Command definition
Table 40 defines the Subcommand values. If an invalid subcommand is specified, then the device aborts the command with the ERR bit set to one in the Status register, the ABRT bit set to one in the Error register, and causes all outstanding commands to be aborted.
Table 41 Subcommand Field
Subcommand Specific (TTAG) is the selected queue TAG. This allows the host to select the specific outstanding queued command to be managed. The error and normal returns for this command are subcommand specific.
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9.17.4.1 Abort NCQ Queue Subcommand (0h)
A Subcommand set to 0h specifies the Abort NCQ Queue subcommand (see 11.15.1 Abort NCQ Queue Subcommand (0h)). The Abort NCQ Queue subcommand is an immediate NCQ command. Support for this subcommand is indicated in the NCQ Queue Management log (see 9.17.4.3 READ LOG EXT Log Page 12h). The Abort NCQ Queue subcommand affects only those NCQ commands for which the device has indicated command acceptance before accepting this NCQ Queue Management command. This command is prohibited for devices that implement the PACKET feature set.
Normal Outputs
If a supported Abort Type parameter is specified, then the device indicates success, even if the command results in no commands being aborted. When an Abort NCQ Queue command completes successfully, a Set Device Bits FIS is sent to the host to complete the Abort subcommand and commands that were aborted as a consequence of the Abort subcommand by setting the ACT bits for those commands to one. This SDB FIS may also indicate other completed commands.
Error Outputs
The device returns command aborted if:
a) NCQ is disabled and an Abort NCQ queue command is issued to the device; b) The value of the TTAG field equals the value of the TAG field; c) The value of the TTAG field is an invalid TAG number; or d) An unsupported Abort type parameter is specified.
9.17.4.2 Deadline Handling Subcommand (1h)
A Subcommand set to 1h specifies the Deadline Handling Subcommand (see 11.15.2 Deadline handling Subcommand (1h)). This subcommand controls how NCQ Streaming commands are processed by the device. Support for this subcommand is indicated in the NCQ Queue Management Log (see 9.17.4.3 READ LOG EXT Log Page 12h).
The state of the WDNC and RDNC bits are preserved across software resets and COMRESETs (via Software Setting Preservations), and are not preserved across power cycles.
Normal Outputs
If this Deadline Handling Subcommand command is supported, the device returns command completed with no error. When a Deadline Handling Subcommand command completes successfully, a Set Device Bits FIS is sent to the host to complete the Deadline Handling subcommand. This SDB FIS may also indicate other completed commands.
Error Outputs
The device returns command aborted if:
a) NCQ is disabled and a Deadline Handling command is issued to the device; b) The value of the TTAG field equals the value of the TAG field; c) The value of the TTAG field is an invalid TAG number; or d) An unsupported Abort type parameter is specified.
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9.17.4.3 READ LOG EXT Log Page 12h
Dword
Bits
Description
0
Subcommand 0h
31-5
Reserved
4
Supports Abort Selected TTAG
3
Supports Abort Non-Streaming
2
Supports Abort Streaming
1
Supports Abort All
0
Supports Abort NCQ
1
Subcommand 1h
31-3
Reserved
2
Supports Read Data Not Continue
1
Supports Write Data Not Continue
0
Supports DEADLINE HANDLING
2-4
31-0
Reserved
5-127
31-0
Reserved
To determine the supported NCQ Queue Management subcommands and their respective features, host software reads log address 12h. This log is supported if the NCQ Queue Management command is supported (i.e., IDENTIFY DEVICE word 77 bit 5 is set to one). Table 42 defines the 512 bytes that make up the SATA NCQ Queue Management log. The value of the General Purpose Logging Version word is 0001h.
Table 42 NCQ Queue Management Log (12h) data structure definition
Supports the Abort NCQ subcommand
If Supports the Abort NCQ subcommand is set to one, then the device supports the Abort NCQ Queue command (11.15.1 Abort NCQ Queue Subcommand (0h)). If Supports the Abort NCQ subcommand is cleared to zero, then the device does not support the Abort NCQ Queue command.
Supports Abort All
If Supports Abort All is set to one, then the device supports the value of Abort All for the Abort Type parameter of the Abort NCQ Queue command. If Supports Abort All is cleared to zero, then the device does not support the value of Abort All for the Abort Type parameter of the Abort NCQ Queue command.
Supports Abort Streaming
If Supports Abort Streaming is set to one, then the device supports the value of Abort Streaming for the Abort Type parameter of the Abort NCQ Queue command. If Supports Abort Streaming is cleared to zero, then the device does not support the value of Abort Streaming for the Abort Type parameter of the Abort NCQ Queue command.
Supports Abort Non-Streaming
If Supports Abort Non-Streaming is set to one, then the device supports the value of Abort Non-Streaming for the Abort Type parameter of the Abort NCQ Queue command. If Supports Abort Non-Streaming is cleared to zero, then the device does not support the value of Abort Non-Streaming for the Abort Type parameter of the Abort NCQ Queue command.
Supports the Abort Selected TTAG
If Supports Abort Selected TTAG is set to one, then the device supports the value of Abort Selected for the Abort Type parameter of the Abort NCQ Queue command. If Supports Abort Selected TTAG is cleared to zero, then the device does not support the value of Abort Selected for the Abort Type parameter of the Abort NCQ Queue command.
Supports the Deadline Handling subcommand
If Supports the Deadline Handling subcommand is set to one, then the device supports the Deadline Handling command. If the Supports the Deadline Handling subcommand is cleared to zero, then the device does not support the Deadline Handling command.
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Supports WDNC
If Supports WDNC is set to one, then the device supports the WDNC bit of the DEADLINE HANDLING command. If Supports WDNC is cleared to zero, then the device does not support the WDNC bit of the DEADLINE HANDLING command.
Supports RDNC
If Supports RDNC is set to one, then the device supports the RDNC bit of the Deadline Handling command. If Supports RDNC is cleared to zero, then the device does not support the WDNC bit of the Deadline Handling command.
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9.17.5 Rebuild Assist
Byte
7 6 5 4 3 2 1
0
0
Reserved
Rebuild
Assist
Enabled
1…6
Reserved
7
Physical Element Length (N)
8
(MSB)
Disabled Physical Element Mask
(LSB)
7 + N
8 + N
(MSB)
Disabled Physical Elements
(LSB)
7+(2×N)
8+(2×N)..511
Reserved
The Rebuild Assist mode provides a method for a host controlling the rebuild process to determine that logical sectors on the failed device are unreadable without having to read every LBA to determine the unreadable logical sectors (i.e., the read command is terminated with an error and the failed LBA is reported in the sense data). The storage array controller then may reconstruct the failed logical sectors. The remaining logical sectors may be copied to the replacement device.
If the Rebuild Assist feature is enabled, then the host should issue sequential READ FPDMA QUEUED commands to extract the available data from the device. If a READ FPDMA QUEUED command does not detect an unrecovered error, then the command should complete without error.
The Rebuild Assist feature allows reporting of an unrecovered read error or an unrecovered write error that is either predicted (i.e., a predicted unrecovered error) or unpredicted (i.e., an unpredicted unrecovered error). If a device processes a READ FPDMA QUEUED command with the RARC bit set to one, then Rebuild Assist feature shall not affect processing of the READ FPDMA QUEUED command.
If the device processes a READ FPDMA QUEUED command with the RARC bit cleared to zero and detects a predicted unrecovered error, the following information recorded in the Queued Error log.
A) The Sense Key field is set to Bh(ABORTED COMMAND); B) The Additional Sense Code field and the Additional Sense Code Qualifier field is set to 1103h
(MULTIPLE READ ERRORS); C) The LBA field is set to the LBA of the first unrecovered logical sector; and D) The Final LBA In Error field is set to the LBA of the last predicted unrecovered logical sector in a sequence of
contiguous unrecovered logical sectors that started with the first LBA in error.
9.17.5.1 Rebuild Assist log (15h)
If the device supports the Rebuild Assist feature (i.e., IDENTIFY DEVICE data Word 78 bit 11 is set to one), then the Rebuild Assist log shall be supported.
Table 43 Rebuild Assist log (15h) data structure definition
Physical Element Length
The Physical Element Length field indicates the number of bytes in the Disabled Physical Element Mask field and the number of bytes in the Disabled Physical Elements field. The device shall ignore any attempt by the host to change the value of this field when writing to the Rebuild Assist log.
Disabled Physical Element Mask The Disabled Physical Element Mask field indicates that bits in the Disabled Physical Elements field are supported. The device shall ignore any attempt by the host to change the value of this field when writing to the Rebuild Assist log.
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Disabled Physical Elements
The Disabled Physical Elements field specifies if physical elements shall be disabled. Each bit that is set to one in the Disabled Physical Elements field specifies that LBAs associated with this physical element shall respond to read commands and write commands as if the associated LBAs have predicted errors. Each bit that is set to zero in the Disabled Physical Elements field specifies that LBAs associated with this physical element shall respond to read commands and write commands as if the associated LBAs do not have predicted errors.
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9.18 SCT Command Transport feature Set
Log page E0h
Log Page E1h
Write log page
Issue Command
Send Data to the drive
Read log page
Return Status
Received Data from the drive
Word
Description
206
SCT Command set support
15-12
Vendor Specific
11-6
Reserved
5 Action Code 5 (SCT Data Table) supported
4 Action Code 4 (Features Control) supported
3 Action Code 3 (Error Recovery Control) supported
2 Action Code 2 (SCT Write Same) supported
1 Obsolete
0 SCT Feature Set supported (includes SCT status)
9.18.1 Overview
9.18.1.1 Introduction
SMART Command Transport (SCT) is the method for the drive to receive commands using log page E0h and transporting data using log page E1h. These log pages are used as follows:
Table 44 SCT Log Page and direction
There are two ways to access the log pages: using SMART READ/WRITE LOG and READ/WRITE LOG EXT. Both sets of commands access the same log pages and provide the same capabilities.
The log directory for log pages E0h and E1h should report a length of one. The length of log page E1h does not indicate the length of an SCT data transfer.
If SMART is supported, but not enabled, the drive supports SMART READ/WRITE LOG for Log page E0h and E1h. If security is enabled and password has not been issued to unlock the device, all SCT commands will fail.
9.18.1.2 Capability definition
Capability Identification is performed by issuing Identify Device command. Word 206 of Identify Data is used to determine if SCT is enabled and which SCT Action Codes are supported.
Table 45 Identify Device Information Word 206
9.18.1.3 SCT Command Nesting and intermingling with Standard commands
In general, standard ATA commands can be intermingled with SCT Commands but SCT commands cannot be nested. SCT commands that do require a follow-on data transfer operation never have an issue with being intermixed with any ATA commands or each other. SCT commands that do require data transfer, on the other hand, may not be nested; that is, if a key command that requires a data transfer is issued, all data transfer – to or from the host – must complete before another SCT command is issued. In most cases, however, ATA read/write commands may be inserted in between SCT data transfers, that is, between complete SMART Read Log/Write Log commands. Furthermore, any reset (power-on, software or hardware) will cause the SCT command to be aborted.
9.18.1.4 Resets
If an SCT command is executing, any reset including Soft Reset, Hard Reset, COMRESET, and Power-On Reset all cause the command to be terminated. This could result in partial command execution or data loss. There is no indication once the drive becomes ready that the previous command was terminated.
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9.18.2 SCT Command Protocol
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature
D6h
Sector Count
01h
Sector Number
E0h
Cylinder Low
4Fh
Cylinder High
C2h
Device/Head
- - - D - - -
-
Command
B0h
Command Block Input Registers (Success)
Command Block Input Registers (Error)
Register
7 6 5 4 3 2 1
0 Register
7 6 5 4 3 2 1
0
Error
00h
Error
04h
Sector Count
Depends on command
(LSB)
Sector Count
Extended Status code
(LSB)
Sector Number
Depends on command
(MSB)
Sector Number
Extended Status code
(MSB)
Cylinder Low
Number of sectors to
transfer (LSB)
Cylinder Low
Number of sectors to
transfer (LSB)
Cylinder High
Number of sectors to
transfer (MSB)
Cylinder High
Number of sectors to
transfer (MSB)
Device/Head
- - - - - - -
- Device/Head
- - - - - - -
-
Status
50h
Status
51h
9.18.2.1 Command Transport
SCT Command Transport occurs when a 512-byte data packet (called “Key Sector”) is created and the written to SMART or extended log page E0h. The key sector specifies Action and Function Codes along with the parameters that are required to perform the action.
Issue SCT Command Using SMART
Table 46 Output Registers of SCT Command Using SMART
Table 47 Input Registers of SCT Command Using SMART
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Issue SCT Command Using Write Log Ext
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature Current
Reserved
Previous
Reserved
Sector Count Current
01h
Previous
00h
LBA Low Current
E0h
Previous
Reserved
LBA Mid Current
00h
Previous
00h
LBA High Current
Reserved
Previous
Reserved
Device/Head
- - - D - - - - Command
3Fh
Command Block Input Registers (Success)
Command Block Input Registers (Error)
Register
7 6 5 4 3 2 1
0 Register
7 6 5 4 3 2 1
0
Error
00h
Error
04h
Sector Count HOB=0
Depends on command
(LSB)
Sector Count HOB=0
Extended Status Code
(LSB)
HOB=1
Reserved
HOB=1
Reserved
LBA Low HOB=0
Depends on command
(MSB)
LBA Low HOB=0
Extended Status Code
(MSB)
HOB=1
Reserved
HOB=1
Reserved
LBA Mid HOB=0
Number of sectors (LSB)
LBA Mid HOB=0
Number of sectors (LSB)
HOB=1
Reserved
HOB=1
Reserved
LBA High HOB=0
Number of sectors (MSB)
LBA High HOB=0
Number of sectors (MSB)
HOB=1
Reserved
HOB=1
Reserved
Device/Head
- - - - - - -
- Device/Head
- - - - - - -
-
Status
50h
Status
51h
Table 48 Input Registers of SCT Command Using Write Log Ext
All ATA “previous” registers are reserved in Write Log Ext responses.
Table 49 Output Registers of SCT Command Using Write Log Ext
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Key Sector Format
Byte
Field
Words
Description
1:0
Action Code
1
This field defines the command type and generally specifies the type of data being accessed, such as sector or physical action being performed, such as seek.
3:2
Function Code
1
This field specifies the type of access, and varies by command. For example, this can specify read, write, verify, etc.
X:4
Parameter1
Depends on command
Depends on command
Y:x+1
Parameter2
Depends on command
Depends on command
… … … …
Total Words
256
Action Code
Block Data
TF Data
Description
0000h
- - Reserved
0001h
Read/Write
Y
Long Sector Access (Not Supported)
0002h
Write
N
SCT Write Same
0003h
- Y Error Recovery Control
0004h
- Y Features Control
0005h
Read
N
SCT Data Table
0006h-BFFFh
- - Reserved
C000h-FFFFh
- - Vendor Specific
An SCT command (Key Sector) is always 512 bytes long. Table below shows the generic format of an SCT command.
Table 50 Key Sector Format
The action codes are defined in Table below.
Table 51 SCT Action Code List
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Extended Status Code
Status Code
Definition
0000h
Command complete without error
0001h
Invalid Function Code
0002h
Input LBA out of range
0003h
Request sector count overflow. The number of sectors requested to transfer (Sector Count register) in the read or write log command is larger than required by SCT command.
0004h
Invalid Function code in Error Recovery command
0005h
Invalid Selection code in Error Recovery command
0006h
Host read command timer is less than minimum value
0007h
Host write command timer is less than minimum value
0008h
Background SCT command was aborted because of an interrupting host command
0009h
Background SCT command was terminated because of unrecoverable error
000Ah
Invalid Function code in Long Sector Access command
000Bh
SCT data transfer command was issued without first issuing an SCT command
000Ch
Invalid Function code in Feature Control command
000Dh
Invalid Feature code in Feature Control command
000Eh
Invalid New State value in Feature Control command
000Fh
Invalid Option Flags in Feature Control command
0010h
Invalid SCT Action code
0011h
Invalid Table ID (table not supported)
0012h
Command was aborted due to drive security being locked
0013h
Invalid revision code
0017h
Blocking SCT Write Same command was terminated because of unrecoverable error
0018h-BFFFh
Reserved
C000h-C002h
Vendor Specific
C003h
Overlay switch failure in Long Sector Access command
C004h
Read Long failure
C005h
Write Long failure
C006h
Write Cache enable failure
C007h-FFEFh
Vendor Specific
FFF0h-FFFEh
Reserved
FFFFh
SCT command executing in background
Table 52 Extended Status Code
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9.18.2.2 Data transfer
Command Block Output Registers
Register
7 6 5 4 3 2 1 0 Feature
D5h(Read)/D6h(Write)
Sector Count
Number of sectors to be
transferred
Sector Number
E1h
Cylinder Low
4Fh
Cylinder High
C2h
Device/Head
- - - D - - -
-
Command
B0h
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature Current
Reserved
Previous
Reserved
Sector Count Current
01h
Previous
00h
LBA Low Current
E1h
Previous
Reserved
LBA Mid Current
00h
Previous
00h
LBA High Current
Reserved
Previous
Reserved
Device/Head
- - - D - - -
-
Command
2Fh(Read)/3Fh(Write)
Once an SCT command has been issued, status can be checked and data can be transferred. Data transfer uses log page E1h.
Read/Write SCT Data Using SMART
Table 53 Input Registers of SCT Data Transfer Using SMART
Read/Write SCT Data Using Read/Write Log Ext
Table 54 Input Registers of SCT Data Transfer using Read/Write Log Ext
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9.18.2.3 SCT Status Request
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature
D5h
Sector Count
01h
Sector Number
E0h
Cylinder Low
4Fh
Cylinder High
C2h
Device/Head
- - - D - - -
-
Command
B0h
Command Block Output Registers
Register
7 6 5 4 3 2 1
0
Feature
Current
Reserved
Previous
Reserved
Sector Count
Current
01h
Previous
00h
LBA Low
Current
E0h
Previous
Reserved
LBA Mid
Current
00h
Previous
00h
LBA High
Current
Reserved
Previous
Reserved
Device/Head
- - - D - - - - Command
2Fh
Once an SCT command has been issued, a status is reported in the ATA registers. This status indicates that the command was accepted or that an error occurred. This ATA status return does not indicate successful completion of the SCT actions. Some commands can take several minutes or even hours to execute. In this case, the host can determine execution progress by requesting SCT status.
Log page E0h contains the status information. Reading log page E0h retrieves the status information. The SCT status may be acquired any time that the host is allowing to send a command to the device. This command will not change the power state of the drive, nor terminate any background activity, including any SCT command in progress.
SCT Status Request Using SMART
Table 55 Input Registers of SCT Status Request Using SMART
SCT Status Request Using Read Log Ext
Table 56 Input Registers of SCT Status Request Using Read Log Ext
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Format of SCT Status Response
Byte
Type
Field Name
Value
Description
1:0
Word
Format Version
0003h
Status Response format version number
3:2
Word
SCT Version
Manufacturer’s vendor specific implementation version
number
5:4
Word
SCT Spec.
0001h
Highest level of SCT Technical Report supported
9:6
Dword
Status Flags
Bit 0 : Segment Initialized Flag If this bit is set to 1, an SCT Write Same command write to all LBAs of the drive has completed without error. This bit shall be cleared to 0 when any user LBA is written, even if write cache is enabled. This bit is else cleared if the capacity of the drive is changed via SETMAX, SETMAX EXT or DCO. This bit is preserved through a power cycle. Bit 1-31 : Reserved
10
Byte
Drive Status
0 = Active waiting for a command 1 = Stand-by 2 = Sleep 3 = DST executing in background 4 = SMART ODC executing in background 5 = SCT executing in background
13:11
Byte[3]
reserved
00h
15:14
Word
Extended Status Code
Status Of last SCT command issued. FFFFh if SCT command executing in background.
17:16
Word
Action Code
Action code of last SCT command issued. If the Extended Status Code is FFFFh, this is the Action Code of the command that is current executing.
19:18
Word
Function Code
Function code of last SCT command issued. If the Extended Status Code is FFFFh, this is the Function Code of the command that is current executing.
39:20
Byte[20]
reserved
00h
47:40
Qword
LBA
Current LBA of SCT command execution in background. If there is no command currently executing in the background, this field is undefined.
199:48
Byte[152]
00h
200
Byte
HDA Temp
Current HDA temperature in degrees Celsius. This is a
2’s complement number. 80h indicates that this value
is invalid.
201
Byte
Min Temp
Minimum HDA temperature in degrees Celsius. This is a 2’s complement integer. 80h indicates that this value is invalid.
202
Byte
Max Temp
Maximum HDA temperature in degrees Celsius. This is
a 2’s complement number. 80h indicates that this value
is invalid.
203
Byte
Life Min Temp
Minimum HDA temperature in degrees Celsius seen for the life of the device. This is a 2’s complement integer. 80h indicates that this value is invalid.
204
Byte
Life Max Temp
Maximum HDA temperature in degrees Celsius seen
for the life of the drive. This is a 2’s complement
number. 80h indicates that this value is invalid.
Table 57 Data Format of SCT Status Response -1
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Byte
Type
Field Name
Value
Description
205
Byte
Reserved
00h
209:206
Dword
Over Limit Count
Number of temperature recording Intervals since the last power-on reset where the recorded temperature was greater than Max Op Limit. See Table 143 Read Native Max Address Ext (27h) for information about this Interval.
213:210
Dword
Under Limit Count
Number of temperature recording Intervals since the last power-on reset where the recorded temperature was less than Min Op Limit. See Table 143 Read Native Max Address Ext (27h) for information about this Interval.
479:214
Byte[275]
Reserved
00h
511:480
Byte[32]
Vendor Specific
00h
Table 58 Data Format of SCT Status Response -2
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9.18.3 SCT Command Set
Word
Name
Value
Description
0
Action Code
0002h
This action writes a pattern or sector of data repeatedly to
the media. This capability could also be referred to as “Write
All” or “Write Same”.
1
Function Code
0001h
Repeat Write Pattern (Background Operation)
0002h
Repeat Write Sector (Background Operation)
0101h
Repeat Write Pattern (Blocking Operation)
0102h
Repeat Write Sector (Blocking Operation)
5:2
Start LBA
Qword
First LBA
9:6
Count
Qword
Number of sectors to fill
11:10
Pattern
Dword
If the Function Code is 0001h, this field contains a 32-bit pattern that is written on the media starting at the location specified in words two through five
255:12
reserved
0000h
Command Block Input Registers (Success)
Error
00h
Sector Count
Reserved
Sector Number
Reserved
Cylinder Low
Number of sectors to transfer (LSB) = 01h
Cylinder High
Number of sectors to transfer (MSB) = 00h
Device/Head
Reserved
Status
50h
9.18.3.1 SCT Write Same (action code : 0002h)
Inputs: (Key Sector)
Table 59 SCT Write Same (Inputs)
Outputs: (TF Data)
Table 60 Output Registers of SCT Write Same (Success)
The SCT Write Same command will begin writing sectors from Start LBA in incrementing order until Count sectors have been written. A Count of zero means apply operation from Start LBA until the last user LBA on the drive is reached. The HPA feature determines the last user LBA. This command will not write over a hidden partition when hidden partitions are enabled using the Host Protected Area drive capabilities. Automatic sector reassignment is permitted during the operation of this function.
If Start LBA or Start LBA + Count go beyond the last user LBA then an error is reported and the SCT command is not executed. Issuing this command with a value of zero for Start LBA and Count will cause all LBAs of the drive to be written the specified pattern.
Once the key sector has been issued, if the Function Code was 0002h or 0102h and the TF Data indicates that the drive is ready to receive data, log page E1h should be written to transfer the data.
This command can change the Segment Initialized Flag. If the command writes all the user addressable sectors
and completes without encountering an error or being aborted, then the “Segment Initialized Flag” (bit 0 of the
Status Flags in the SCT Status. See Table 57) shall be set to 1. A write to any user addressable sector on the drive (except another complete write all), shall cause the Segment Initialized Flag to be cleared. Reallocations as a result of reading data (foreground or background) do not clear the Segment Initialized Flag.
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Implementation note for Background Operation (Function code = 0001h, 0002h)
Possible Extended Status Code for Background Operation (Function code = 0001h, 0002h)
0008h
Background SCT command was aborted because of an interrupting host command
0009h
Background SCT command was terminated because of unrecoverable error
FFFFh
SCT command executing in background
Command Block Input Registers (Error)
Register
7 6 5 4 3 2 1
0
Error
04h
Sector Count
Extended Status code
(LSB)
Sector Number
Extended Status code
(MSB)
Cylinder Low
N/A
Cylinder High
N/A
Device/Head
- - - - - - -
-
Status
51h
Possible Extended Status Code for Blocking Operation (Function code = 0101h, 0102h)
0017h
Blocking SCT Write Same command was terminated because of unrecoverable error
In this mode, the drive will return command completion status when the drive finished receiving data. Any command, including IDENTIFY DEVICE, other than SCT Status, issued to the drive while this command is in
progress will terminate the SCT Write Same command. The incoming command is executed. Use the SCT Status command to retrieve status information about the current SCT command. Example status
information includes: command active or complete, current LBA, and errors. When this command is in progress, the SCT status error code will be FFFFh, and set to 0000h if the command completes without error. It will be less than FFFFh and grater the 0000h if the command terminated prematurely for any reason.
Implementation note for Blocking Operation (Function code = 0101h, 0102h)
In this mode, the drive will return command completion status when the drive finished the SCT Write Same operation.
Outputs for Error
Table 61 Output Registers of SCT Write Same (Error)
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9.18.3.2 Error Recovery Control command (action code : 0003h)
Word
Name
Value
Description
0
Action Code
0003h
Set the read and write error recovery time
1
Function Code 0001h
Set New Value
0002h
Return Current Value
2
Selection Code 0001h
Read Timer
0002h
Write Timer
3
Value
Word
If the function code is 0001h, then this field contains the recovery time limit in 100ms units. The minimum SCT timeout value is 65 (=6.5 second). When the specified time limit is shorter than 6.5 second, the issued command is aborted.
255:4
reserved
0000h
Command Block Input Registers (Success)
Error
00h
Sector Count
If Function Code was 0002h, then this is the LSB of the requested recovery limit. Otherwise, this field is reserved.
Sector Number
If Function Code was 0002h, then this is the MSB of the requested recovery limit. Otherwise, this field is reserved.
Cylinder Low
reserved
Cylinder High
reserved
Device/Head
reserved
Status
50h
Inputs: (Key Sector)
Table 62 Error Recovery Control command (Inputs)
Outputs: (TF Data)
Table 63 Error Recovery Control command (On puts)
The Error Recovery Control command can be used to set time limits for read and write error recovery. For non­queued commands, these timers apply to command completion at the host interface. For queued commands where in order data delivery is enabled, these timers begin counting when the device begins to execute the command, not when the command is sent to the device. These timers do not apply to streaming commands, or to queued commands when out-of-order data delivery is enabled.
These command timers are volatile. The default value is 0 (i.e. disable command time-out).
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9.18.3.3 Feature Control Command (action code : 0004h)
Word
Name
Value
Description
0
Action Code
0004h
Set or return the state of drive features described in Table 66
1
Function Code
0001h
Set state for a feature
0002h
Return the current state of a feature
0003h
Return feature option flags
2
Feature Code
Word
See Table 66 for a list of the feature codes
3
State
Word
Feature code dependent value
4
Option Flags
Word
Bit15:1 = Reserved If the function code is 0001h, setting bit 0 to one causes the requested
feature state change to be preserved across power cycles. If the function code is 0001h, setting bit 0 to zero causes the requested
feature state change to be volatile. A hard reset causes the drive to revert to default, or last non-volatile setting.
255:5
reserved
0000h
Command Block Input Registers (Success)
Error
00h
Sector Count
If Function Code was 0002h, then this is the LSB of Feature State. If Function Code was 0003h, then this is the LSB of Option Flags. Otherwise, this field is reserved.
Sector Number
If Function Code was 0002h, then this is the MSB of Feature State. If Function Code was 0003h, then this is the MSB of Option Flags. Otherwise, this field is reserved.
Cylinder Low
reserved
Cylinder High
reserved
Device/Head
reserved
Status
50h
Inputs: (Key Sector)
Table 64 Feature Control command (Inputs)
Outputs: (TF Data)
Table 65 Feature Control command (Outputs)
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Feature Code
State Definition
0001h
0001h : Allow write cache operation to be determined by Set Feature command 0002h : Force write cache enabled 0003h : Force write cache disabled If State 0001h is selected, the ATA Set Feature command will determine the operation state
of write cache. If State 0002h or 0003h is selected, write cache will be forced into the corresponding operation state, regardless of the current ATA Set Feature state. Any attempt to change the write cache setting through Set Feature shall be accepted, but otherwise ignored, and not affect the operation state of write cache and complete normally without reporting an error.
In all cases, bit 5 of word 85 in the Identify Device information will reflect the true operation state of write cache, one indicating enabled and zero indicating disabled.
The default state is 0001h.
0002h
0001h : Enable Write Cache Reordering 0002h : Disable Write Cache Reordering The default state is 0001h. The drive does not return error for setting state 0002h, but the state is ignored.
0003h
Set time interval for temperature logging. 0000h is invalid. 0001h to FFFFh logging interval in minutes. This value applies to the Absolute HDA Temperature History queue. Issuing this command
will cause the queue to be reset and any prior values in the queue will be lost. Queue Index shall be set to zero and the first queue location will be set to the current value. All remaining queue locations are set to 80h. The Sample Period, Max Op Limit, Over Limit, Min Op Limit and Under Limit values are preserved.
Default value is 0001h.
0004h-CFFFh
Reserved
D000h-FFFFh
Vendor Specific
Table 66 Feature Code List
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9.18.3.4 SCT Data Table Command (action code : 0005h)
Word
Name
Value
Description
0
Action Code
0005h
Read a data table
1
Function Code
0001h
Read Table
2
Table ID
Word
See Table 69 for a list of data tables
255:2
reserved
0000h
Command Block Input Registers (Success)
Error
00h
Sector Count
reserved
Sector Number
reserved
Cylinder Low
Number of sectors to transfer (LSB) = 01h
Cylinder High
Number of sectors to transfer (MSB) = 00h
Device/Head
reserved
Status
50h
Table ID
Description
0000h
Invalid
0001h
Reserved
0002h
HDA Temperature History Table (in absolute degree C). See Table 71
0003h-CFFFh
Reserved
D000h-FFFFh
Vendor Specific
Inputs: (Key Sector)
Table 67 SCT Data Table command (Inputs)
Outputs: (TF Data)
Table 68 SCT Data Table command (Outputs)
Table 69 Table ID
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Byte
Size
Field Name
Description
1:0
Word
Format Version
Data table format version (=0002h)
3:2
Word
Sampling Period
Absolute HDA Temperature sampling period in minutes.
0000h indicates sampling is disabled.
5:4
Word
Interval
Timer interval between entries in the history queue.
6
Byte
Max Op Limit
Maximum recommended continuous operating
temperature. This is a one byte 2’s complement
number that allows a range from -127°C to +127°C to be specified. 80h is an invalid value. This is a fixed value.
7
Byte
Over Limit
Maximum temperature limit. This is a one byte 2’s
complement number that allows a range from ­127°C to +127°C to be specified. 80h is an invalid value. This is a fixed value.
8
Byte
Min Op Limit
Minimum recommended continuous operating limit.
This is a one byte 2’s complement number that
allows a range from -127°C to +127°C to be specified. 80h is an invalid value. This is a fixed value.
9
Byte
Under Limit
Minimum temperature limit. This is a one byte 2’s
complement number that allows a range from ­127°C to +127°C to be specified. 80h is an invalid value. This is a fixed value.
29:10
Byte[20]
Reserved
31:30
Word
Queue Size
Number of entry locations in history queue. This value is 128.
33:32
Word
Queue Index
Last updated entry in queue. Queue Index is zero­based, so Queue Index 0000h is the first location in the buffer (at offset 34). The most recent temperature entered in the buffer is at Queue Index + 34.
See Note 1 and Note 2.
Table 70 Data Format of HDA Absolute Temperature History Table -1
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Byte
Size
Field Name
Description
(Queue Size+33):34
Byte[Queue Size]
Queue Buffer
This is a circular buffer of absolute HDA
Temperature values. These are one byte 2’s
complement numbers, which allow a range from -127°C to +127°C to be specified. A value of 80h indicates an initial value or a discontinuity in temperature recording.
The Actual time between samples may vary because commands may not be interrupted. The sampling period is the minimum time between samples. See Note 1.
If the host changes the logging interval using the volatile option, the interval between entries in the queue may change between power cycles with no indication to the host.
511(Queue Size +34)
Byte [512-Queue Size-34]
Reserved
Note 1 – The Absolute HDA Temperature History is preserved across power cycles with the requirement that when the drive powers up, a new entry is made in the history queue of 80h, an invalid absolute temperature value. This way an application viewing the history can see the discontinuity in temperature result from the drive being turned off.
Note 2 – When the Absolute HDA Temperature history is cleared, for new drives or after changing the Logging Interval, the Queue Index shall be set to zero and the first queue location shall be set to the current Absolute HDA Temperature value. All remaining queue locations are set to 80h.
Table 71 Data Format of HDA Absolute Temperature History Table -2
100
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