Hard Disk Drive Specification
Ultrastar C15K147
2.5 inch Serial Attached SCSI (SAS) Hard Disk Drive
Models: HUC151414CSS600
HUC151473CSS600
Version: 2.00
16 November 2012
Warning: Printed copies of this document are considered current only on the date of print. Replacement and disposal of downlevel versions is the responsibility of the document holder.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specificationn
1st Edition (Rev 2.00) (16 November 2012)
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 http://
www.hgst.com
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.
© Copyright HGST, a Western Digital company
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
Table of Contents
1.0 General............................................................................................................................1
1.1 Introduction................................................................................................................1
1.2 Glossary .....................................................................................................................1
1.3 Caution.....................................................................................................................1
2.0 Outline of the Drive .......................................................................................................3
3.0 Fixed-disk Subsystem Description ...............................................................................5
3.1 Control Electronics ....................................................................................................5
3.2 Head Disk Assembly .................................................................................................5
3.3 Actuator .....................................................................................................................5
4.0 Drive Characteristics.....................................................................................................7
4.1 Formatted Capacity....................................................................................................7
4.2 Data Sheet ..................................................................................................................7
4.3 Inquiry Information....................................................................................................8
4.3.1Product ID..........................................................................................................8
4.3.2World Wide ID - Block Assignment .................................................................8
4.4 Cylinder allocation.....................................................................................................9
4.5 Performance characteristics .......................................................................................10
4.5.1Mechanical positioning......................................................................................11
4.5.2Drive ready time ................................................................................................13
4.5.3Spindle stop time ...............................................................................................13
4.5.4Data transfer speed.............................................................................................13
4.5.5Buffering operation (read ahead/write cache)....................................................13
5.0 Data Integrity .................................................................................................................15
5.1 Equipment Status .......................................................................................................15
5.2 Error Recovery Procedure..........................................................................................15
6.0 Physical Format .............................................................................................................17
6.1 Shipped Format (P-List) ............................................................................................17
6.2 Reassigned Format (G-List).......................................................................................17
7.0 Electrical Interface.........................................................................................................19
7.1 SAS Connector ..........................................................................................................19
7.1.129 pin Serial Attached SCSI (SAS) Connector Definition ................................19
7.1.2Voltage and Ground Signals ..............................................................................20
7.1.3Ready LED output .............................................................................................20
8.0 Environment...................................................................................................................21
8.1 Temperature and humidity.........................................................................................21
8.2 Storage requirements .................................................................................................22
8.2.1Packaging...........................................................................................................22
8.2.2Storage time .......................................................................................................22
8.3 Corrosion test.............................................................................................................22
8.4 Cooling requirements.................................................................................................23
9.0 DC Power Requirements...............................................................................................25
9.1 Power Supply Current, Average and Peak.................................................................25
9.2 Ripple Voltage ...........................................................................................................27
9.3 Power Consumption Efficiency Index.......................................................................27
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
10.0 Reliability......................................................................................................................29
10.1 Start/Stop Cycles......................................................................................................29
10.2 Load/Unload Cycles ................................................................................................29
10.3 Data Reliability ........................................................................................................29
10.4 Seek errors ...............................................................................................................29
10.5 Failure prediction (S.M.A.R.T) ...............................................................................29
10.6 MTBF (Mean Time Between Failure): 1.6M hours. ............................................29
10.7 Preventive Maintenance...........................................................................................30
10.8 Temperature Warning ..............................................................................................30
11.0 Mechanical Specifications ...........................................................................................31
11.1 Outline .....................................................................................................................31
11.2 Mechanical Dimensions...........................................................................................31
11.3 Interface Connector..................................................................................................33
11.4 Mounting Positions and Tappings ...........................................................................34
11.5 Drive Mounting........................................................................................................35
11.6 Heads Unload and Actuator Lock............................................................................35
12.0 Vibration and Shock....................................................................................................37
12.1 Operating Vibration .................................................................................................37
12.1.1Random Vibration............................................................................................37
12.1.2 Swept Sine Vibration ......................................................................................37
12.2 Non-operating Vibrations ........................................................................................37
12.2.1 Random Vibration...........................................................................................37
12.2.2 Swept Sine Vibration ......................................................................................37
12.3 Operating shock ......................................................................................................37
12.4 Non-operating shock...............................................................................................38
12.4.1Half sinewave shock pulse...............................................................................38
12.4.2 Rotational shock .............................................................................................38
13.0 Acoustics .......................................................................................................................39
13.1 Sound power levels..................................................................................................39
14.0 Identification ................................................................................................................41
14.1 Labels.......................................................................................................................41
15.0 Electromagnetic Compatibility...................................................................................43
15.1 Class B Regulatory Notices .....................................................................................43
16.0 Standards......................................................................................................................45
16.1 UL and C-UL Standard Conformity ........................................................................45
16.2 European Standards Compliance .............................................................................45
16.3 German Safety Mark................................................................................................45
16.4 Flammability............................................................................................................45
16.5 Corporate Standards Compliance ............................................................................45
17.0 SAS Attachment...........................................................................................................47
17.1 General.....................................................................................................................47
17.2 SAS Features............................................................................................................47
17.3 SAS Names and Identifiers......................................................................................48
17.4 Spin up .....................................................................................................................49
17.5 PHY Layer ...............................................................................................................50
17.5.1Link Reset Sequence........................................................................................50
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
17.5.2Hard Reset........................................................................................................51
17.5.3SAS OOB (Out of Band) .................................................................................51
17.5.4SAS Speed Negotiation ...................................................................................52
17.5.5PHY Error Handling ........................................................................................53
17.6 Link Layer................................................................................................................53
17.6.1Address Frames................................................................................................53
17.6.2Link Layer Error Handling ..............................................................................56
17.7 Transport Layer........................................................................................................58
17.7.1Command Information Unit.............................................................................59
17.7.2TASK Information Units .................................................................................60
17.7.3XFER_RDY Information Units.......................................................................61
17.7.4DATA Information Units.................................................................................62
17.7.5RESPONSE Information Units........................................................................62
17.7.6Sequences of SSP Information Units...............................................................64
17.7.7Transport Layer Error Handling ......................................................................64
18.0 SCSI Command Set .....................................................................................................67
18.1 SCSI Control Byte ...................................................................................................69
18.2 Abbreviations...........................................................................................................69
18.3 Byte ordering conventions .......................................................................................69
18.4 FORMAT UNIT (04)...............................................................................................70
18.4.1Parameter List Header .....................................................................................72
18.4.2Defect Descriptor.............................................................................................73
18.5 INQUIRY (12).........................................................................................................77
18.5.1Inquiry Data .....................................................................................................78
18.6 LOG SELECT (4C) .................................................................................................93
18.7 LOG SENSE (4D) ...................................................................................................96
18.7.1Log Page parameters........................................................................................97
18.7.2Log Sense Page 0.............................................................................................98
18.7.3Log Sense Page 2.............................................................................................99
18.7.4Log Sense Page 3.............................................................................................101
18.7.5Log Sense Page 5.............................................................................................103
18.7.6Log Sense Page 6.............................................................................................105
18.7.7Log Sense Page D ............................................................................................106
18.7.8Log Sense Page E ............................................................................................107
18.7.9Log Sense Page F.............................................................................................108
18.7.10Log Sense Page 10.........................................................................................109
18.7.11Log Sense Page 15.........................................................................................112
18.7.12Log Sense Page 18.........................................................................................115
18.7.13Log Sense Page 2F.........................................................................................119
18.7.14Log Sense Page 30.........................................................................................120
18.7.15Log Sense Page 37.........................................................................................123
18.8 MODE SELECT (15) ..............................................................................................125
18.9 MODE SELECT (55) ..............................................................................................126
18.10 MODE SENSE (1A)..............................................................................................127
18.10.1Mode Parameter List......................................................................................128
18.10.2Mode Page 00 (Vendor Unique Parameters) .................................................132
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
18.10.3Mode Page 01 (Read/Write Error Recovery Parameters)..............................135
18.10.4Mode Page 02 (Disconnect/Reconnect Parameters)......................................140
18.10.5Mode Page 03 (Format Device Parameters) ..................................................141
18.10.6Mode Page 04 (Rigid Disk Drive Geometry Parameters) .............................143
18.10.7Mode Page 07 (Verify Error Recovery Parameters)......................................144
18.10.8Mode Page 08 (Caching Parameters).............................................................145
18.10.9Mode Page 0A (Control Mode Page Parameters)..........................................147
18.10.10Mode Page 0C (Notch Parameters) .............................................................149
18.10.11Mode Page 18h ............................................................................................150
18.10.12Mode Page 19h (Port Control Parameters) ..................................................151
18.10.13Mode Page 1A (Power Control) ..................................................................158
18.10.14Mode Page 1C (Informational Exceptions Control)....................................159
18.11 MODE SENSE (5A)..............................................................................................162
18.12 PERSISTENT RESERVE IN (5E) ........................................................................163
18.12.1Service Action................................................................................................163
18.12.2Parameter data for Read Keys .......................................................................164
18.12.3Parameter Data for Read Reservations ..........................................................165
18.13 PERSISTENT RESERVE OUT (5F) ....................................................................166
18.13.1Service Action................................................................................................167
18.13.2Type ...............................................................................................................167
18.13.3Parameter list .................................................................................................168
18.13.4Summary........................................................................................................169
18.14 PRE-FETCH (34) ..................................................................................................171
18.15 READ (6) - (08).....................................................................................................172
18.16 READ (10) - (28)...................................................................................................173
18.17 READ (12) - (A8) ..................................................................................................175
18.18 READ (16) - (88)...................................................................................................176
18.19 READ (32) - (7F/09)..............................................................................................177
18.20 READ BUFFER (3C) ............................................................................................179
18.20.1Combined Header And Data (Mode 00000b)................................................180
18.20.2Read Data (Mode 00010b).............................................................................180
18.20.3Descriptor (Mode 00011b).............................................................................181
18.20.4Read Data from Echo Buffer (Mode 01010b) ...............................................182
18.20.5Echo Buffer Descriptor (Mode 01011b)........................................................182
18.20.6Expander Communications and Echo Buffer (Mode 11010b) ......................182
18.21 READ CAPACITY (10) - (25)..............................................................................183
18.22 READ CAPACITY (16) (9E/10)...........................................................................185
18.22.1Returned Data Format....................................................................................185
18.23 READ DEFECT DATA (37).................................................................................186
18.23.1Defect List Header .........................................................................................188
18.23.2Defect List Descriptor....................................................................................188
18.23.3Bytes from Index Format (100b) ...................................................................189
18.23.4Physical Sector Format (101b) ......................................................................189
18.24 READ DEFECT DATA (B7) ................................................................................190
18.24.1Defect List Header .........................................................................................190
18.24.2Defect List Descriptor....................................................................................191
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
18.24.3Bytes from Index Format (100b) ...................................................................191
18.24.4Physical Sector Format (101b) ......................................................................191
18.25 READ LONG (3E) ................................................................................................192
18.26 REASSIGN BLOCKS (07) ...................................................................................193
18.27 RECEIVE DIAGNOSTICS RESULTS (1C) ........................................................195
18.27.1Receive Diagnostic Results Page 0................................................................195
18.27.2Receive Diagnostic Results Page 40..............................................................196
18.28 RELEASE (17) ......................................................................................................198
18.29 RELEASE (57) ......................................................................................................199
18.30 REPORT DEVICE IDENTIFIER (A3/05)............................................................200
18.31 REPORT LUNS (A0) ............................................................................................202
18.32 REPORT SUPPORTED OPERATION CODES (A3/0C) ....................................203
18.32.1All_commands parameter data format...........................................................204
18.32.2One_command parameter data format...........................................................205
18.32.3Command timeouts descriptor format ...........................................................207
18.33 REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS (A3/0D).........208
18.34 REQUEST SENSE (03).........................................................................................210
18.35 RESERVE (16) ......................................................................................................211
18.36 RESERVE (56) ......................................................................................................212
18.37 REZERO UNIT (01)..............................................................................................213
18.38 SEEK (6) - (0B) .....................................................................................................214
18.39 SEEK (10) - (2B) ...................................................................................................214
18.40 SEND DIAGNOSTIC (1D) ...................................................................................215
18.40.1Send Diagnostic Page 0 .................................................................................217
18.40.2Send Diagnostic Page 3F ...............................................................................217
18.40.3Send Diagnostic Page 40 ...............................................................................220
18.41 SET DEVICE IDENTIFIER (A4/06) ....................................................................222
18.42 START STOP UNIT (1B) .....................................................................................223
18.43 SYNCHRONIZE CACHE (10) - (35) ...................................................................225
18.44 SYNCHRONIZE CACHE (16) - (91) ...................................................................226
18.45 TEST UNIT READY (00).....................................................................................227
18.46 VERIFY (2F) .........................................................................................................228
18.47 VERIFY (12) - (AF) ..............................................................................................231
18.48 VERIFY (16) - (8F) ...............................................................................................232
18.49 VERIFY (32) - (7F/0A) .........................................................................................233
18.50 WRITE (6) - (0A) ..................................................................................................235
18.51 WRITE (10) - (2A) ................................................................................................236
18.52 WRITE (12) - (AA) ...............................................................................................239
18.53 WRITE (16) - (8A) ................................................................................................240
18.54 WRITE (32) - (7F/0B) ...........................................................................................241
18.55 WRITE AND VERIFY (10) - (2E)........................................................................243
18.56 WRITE AND VERIFY (12) - (AE).......................................................................244
18.57 WRITE AND VERIFY (16) - (8E)........................................................................245
18.58 WRITE AND VERIFY (32) - (7F/0C) ..................................................................246
18.59 WRITE BUFFER (3B) ..........................................................................................247
18.59.1Combined Header And Data (Mode 00000b)................................................247
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
18.59.2Write Data (Mode 00010b)............................................................................248
18.59.3Download Microcode (Mode 00100b) ..........................................................248
18.59.4Download Microcode and Save (Mode 00101b) -Single Binary File ...........249
18.59.5Download Microcode and Save (Mode 00111b) - Multiple Binary Files .....249
18.59.6Write Data to Echo Buffer (Mode 01010b) ...................................................249
18.59.7Enable Expander Communications Protocol (Mode 11010b) .......................250
18.60 WRITE LONG (3F)...............................................................................................251
18.61 WRITE SAME (41) ...............................................................................................253
18.62 WRITE SAME (16) - (93) .....................................................................................254
18.63 WRITE SAME (32) - (7F/0D)...............................................................................255
19.0 SCSI Status Byte .........................................................................................................257
20.0 Additional information................................................................................................259
20.1 SCSI Protocol ..........................................................................................................259
20.1.1Priority of SCSI Status Byte Reporting ...........................................................259
20.1.2Invalid LUN Processing...................................................................................259
20.1.3Overlapped Commands....................................................................................260
20.1.4Command Processing During Execution of Active I/O Process .....................260
20.1.5Unit Attention Condition .................................................................................261
20.1.6Command Processing During Startup and Format Operations........................263
20.1.7Internal Error Condition...................................................................................263
20.1.8Deferred Error Condition.................................................................................263
20.1.9Degraded Mode................................................................................................264
20.1.10Command Processing while Reserved...........................................................271
20.2 Priority Commands ..................................................................................................271
20.3 Command Queuing ..................................................................................................272
20.3.1Queue Depth ....................................................................................................272
20.3.2Queue Full Status.............................................................................................272
20.3.3Termination of I/O Processes ..........................................................................272
20.4 Command Reordering..............................................................................................272
20.5 Concurrent I/O Process............................................................................................272
20.6 Write Cache .............................................................................................................272
20.7 Automatic Rewrite/Reallocate.................................................................................273
20.8 Segmented Caching .................................................................................................275
20.8.1Overview..........................................................................................................275
20.8.2Read Ahead......................................................................................................275
20.9 Multiple Initiator Systems .......................................................................................275
20.9.1Sense Data........................................................................................................275
20.9.2Mode Pages......................................................................................................275
20.10 Multiple Initiator Environment..............................................................................275
20.10.1Initiator Sense Data........................................................................................275
20.10.2Initiator Mode Select/Mode Sense Parameters..............................................275
20.11 Reset.......................................................................................................................276
20.11.1Reset Sources.................................................................................................276
20.11.2Reset Actions .................................................................................................276
20.12 Diagnostics.............................................................................................................276
20.12.1Power on Diagnostics ....................................................................................276
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
20.12.2Self-test via SEND DIAGNOSTIC Command..............................................277
20.13 Idle Time Function.................................................................................................280
20.14 Command Time out Limits ...................................................................................280
20.14.1Reassignment Time........................................................................................280
20.14.2Format Time ..................................................................................................280
20.14.3Start/Stop Unit Time......................................................................................280
20.14.4Medium Access Command Time ..................................................................281
20.14.5Time-out Limits for Other Commands ..........................................................281
20.15 Recommended Initiator ERP .................................................................................282
20.15.1Drive Service Strategy ...................................................................................282
20.15.2Recommendations for System Error Log ......................................................283
20.15.3Data Recovery Procedure ..............................................................................283
20.15.4Nondata Error Recovery Procedure...............................................................285
21.0 SCSI Sense Data...........................................................................................................293
21.1 SCSI Sense Data Format..........................................................................................293
21.2 Sense Data Description............................................................................................294
21.2.1Valid (Bit 7 of byte 0)......................................................................................294
21.2.2Error Code (Bit 6 - 0 of byte 0) .......................................................................294
21.2.3ILI: Incorrect Length Indicator (Bit 5 of byte 2) .............................................294
21.2.4Sense Key (Bit 3 - 0 of byte 2) ........................................................................295
21.2.5Information Bytes (Byte 3 through 6)..............................................................296
21.2.6Additional Sense Length (Byte 7) ...................................................................296
21.2.7Command Specific Information (Byte 8 through 11)......................................296
21.2.8Additional Sense Code/Qualifier (Byte 12 and 13) .........................................297
21.2.9RU: Field Replaceable Unit (Byte 14).............................................................321
21.2.10Sense Key Specific (Byte 15 through 17)......................................................321
21.2.11Reserved (Byte 18 through 19)......................................................................324
21.2.12Vendor unique error information (Byte 20 through 23) ................................324
21.2.13Physical Error Record (Byte 24 thru 29) .......................................................324
21.2.14Reserved (Byte 30 through 31)......................................................................324
22.0 Appendix. UEC list .....................................................................................................325
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
List of Tables
Table 1.Product ID table............................................................................................1
Table 2.Formatted Capacity.......................................................................................7
Table 3.Data Sheet.....................................................................................................7
Table 4.Product ID in Inquiry Command ..................................................................8
Table 5.Block assignment of World Wide ID in INQUIRY Command....................8
Table 6.Cylinder allocation........................................................................................9
Table 7.Mechanical positioning performance ...........................................................11
Table 8.Full stroke seek time.....................................................................................12
Table 9.Latency time .................................................................................................12
Table 10.Drive ready time .........................................................................................13
Table 11.Spindle stop time ........................................................................................13
Table 12.Data transfer speed (sector size 512 Byte case)..........................................13
Table 13.29-pin Connector Signal Definition............................................................19
Table 14.Operating and non-operating conditions ....................................................21
Table 15.Maximum allowable surface temperatures.................................................23
Table 16.Input Voltage and Capacitance...................................................................25
Table 17.Power Supply Generated Ripple at Drive Power Connector......................27
Table 18.Power Consumption Efficiency Index........................................................27
Table 19.Physical Dimensions...................................................................................31
Table 20.A-weighted sound power levels..................................................................39
Table 21.Names and identifiers .................................................................................48
Table 22.IEEE Registered Name format ...................................................................49
Table 23.Supported Settings Bit Priorities ................................................................52
Table 24.Address Frame Format ...............................................................................53
Table 25.Frame type: .................................................................................................54
Table 26.Identify Address Frame ..............................................................................54
Table 27.Reason field ................................................................................................55
Table 28.SAS Frame Format .....................................................................................58
Table 29.COMMAND Information Unit...................................................................59
Table 30.TASK Information Unit..............................................................................60
Table 31.Additional Response Information argument for Querry Unit Attention ....61
Table 32.XFER_RDY Information Unit ...................................................................61
Table 33.DATA Information Unit .............................................................................62
Table 34.Response Information Unit.........................................................................62
Table 35.RESPONSE DATA ....................................................................................63
Table 36.SCSI Commands Supported .......................................................................67
Table 37.SCSI Control Byte ......................................................................................69
Table 38.FORMAT UNIT (04) .................................................................................70
Table 39.Format of the Parameter List Header..........................................................72
Table 40.Initialization Pattern Descriptor:.................................................................73
Table 41.Defect Descriptor - Block Format (for n + 1 defects) ................................74
Table 42.Defect Descriptor - Bytes From Index Format (for n = 1 defects) .............75
Table 43.Defect Descriptor - Physical Sector Format (for n + 1 defects) .................76
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
Table 44.INQUIRY (12)............................................................................................77
Table 45.Page Code descriptions...............................................................................77
Table 46.Inquiry Data- EVPD = 0.............................................................................78
Table 47.Inquiry Data - EVPD = 1 (Page Code = 00h).............................................79
Table 48.Inquiry Data - EVPD = 1 (Page Code = 03h)F...........................................81
Table 49.Inquiry Data - EVPD = 1 (Page Code = 80h).............................................83
Table 50.Inquiry Data Format - EVPD = 1, (Page Code - 83h) ................................84
Table 51.Inquiry Data Format - EVPD = 1, (Page Code - 86h) ................................85
Table 52.Inquiry Data Format - EVPD = 1, (Page Code - 87h) ................................86
Table 53.Inquiry Data Format - EVPD = 1, (Page Code - 88h) ................................87
Table 54.Inquiry Data - EVPD = 1 (Page Code = 90h).............................................89
Table 55.Protocol-specific logical unit information descriptor .................................89
Table 56.Inquiry Data - EVPD = 1 (Page Code = B1h) ............................................90
Table 57.Inquiry Data - EVPD = 1 (Page Code = D1h)............................................91
Table 58.Inquiry Data - EVPD = 1 (Page Code = D2h)............................................92
Table 59.Log Select (4C)...........................................................................................93
Table 60.Log Sense (4D) ...........................................................................................96
Table 61.Log Sense Page 0........................................................................................98
Table 62.Log Sense Page 2 (part 1 of 2)....................................................................99
Table 63.Log Sense Page 2 (part 2 of 2)....................................................................99
Table 64.Log Sense Page 3 (part 1 of 2)....................................................................101
Table 65.Log Sense Page 3 (part 2 of 2)....................................................................101
Table 66.Log Sense Page 5 (part 1 of 2)....................................................................103
Table 67.Log Sense Page 5 (part 2 of 2)....................................................................104
Table 68.Log Sense Page 6........................................................................................105
Table 69.Log Sense Page D.......................................................................................106
Table 70.Log Sense Page E .......................................................................................107
Table 71.Log Sense Page F........................................................................................108
Table 72.Log Sense Page F, Application Client Log ................................................108
Table 73.Log Sense Page 10......................................................................................109
Table 74.Log Sense Page 10, self-test results............................................................109
Table 75.Log Sense Page 10, self-test results............................................................110
Table 76.Log Sense Page 10, Extended Segment Number........................................111
Table 77.Log Sense Page 15......................................................................................112
Table 78.Log Sense Page 18......................................................................................115
Table 79.SAS Log Descriptor....................................................................................115
Table 80. Log Sense Page 2F.....................................................................................119
Table 81.Log Sense Page 30......................................................................................120
Table 82.Log Sense Page 37......................................................................................123
Table 83.Mode Select (15).........................................................................................125
Table 84.Mode Select (55).........................................................................................126
Table 85.Mode Sense (1A) ........................................................................................127
Table 86.Page Code Usage ........................................................................................128
Table 87.Mode parameter header (6).........................................................................128
Table 88.Mode parameter header (10).......................................................................129
Table 89.Mode Parameter Block Descriptor .............................................................130
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
Table 90.Mode Parameter Page Format ....................................................................131
Table 91.Mode Parameter Page Format ....................................................................131
Table 92.Vendor Unique Parameters - Page 00.........................................................132
Table 93.Mode Page 01 (Vendor Unique Parameters) ..............................................135
Table 94.Mode Page 02 (Disconnect/Reconnect Parameters)...................................140
Table 95.Mode Page 03 (Format Device Parameters)...............................................141
Table 96.Mode Page 04 (Rigid Disk Drive Geometry Parameters) ..........................143
Table 97.Mode Page 07 (Verify Error Recovery Parameters)...................................144
Table 98.Page 08 (Caching Parameters)....................................................................145
Table 99.Page 0A (Control Mode Page Parameters).................................................147
Table 100.Control Extension Subpage ......................................................................148
Table 101.Page 0C (Notch Parameters).....................................................................149
Table 102.Page 18h (Protocol-Specific Logical Unit mode page) ............................150
Table 103.Short (Port Control Parameters) Short Format ........................................151
Table 104.Long Format of Port Control Page ...........................................................152
Table 105.PHY Control and Discover (Subpage 1) ..................................................154
Table 106.SAS PHY Mode Descriptor .....................................................................155
Table 107.Shared Port Control (Subpage 2).............................................................156
Table 108.Subpage 3..................................................................................................157
Table 109.PHY Mode Descriptor (0 and 1)...............................................................157
Table 110.Page 1A (Power Control)..........................................................................158
Table 111.Page 1C (Informational Exceptions Control) ...........................................159
Table 112.Background Control (Subpage 01h) .........................................................161
Table 113.Mode Sense (5A) ......................................................................................162
Table 114.Persistent Reserve In (5E) ........................................................................163
Table 115.PERSISTENT RESERVE IN, Service Action Codes ..............................163
Table 116.PERSISTENT RESERVE IN, parameter data for Read Keys .................164
Table 117.PERSISTENT RESERVE IN, parameter data for Read Reservations.....165
Table 118.PERSISTENT RESERVE IN, Read Reservation Descriptor...................165
Table 119.PERSISTENT RESERVE OUT (5F) .......................................................166
Table 120.PERSISTENT RESERVE OUT, Service Action Code............................167
Table 121.PERSISTENT RESERVE OUT, Type Code ...........................................167
Table 122.Parameter List...........................................................................................168
Table 123.PERSISTENT RESERVE OUT, Service Action, Parameters .................169
Table 124.APTPL and information held by a drive...................................................170
Table 125.PRE-FETCH (34) .....................................................................................171
Table 126.READ (6) - (08)........................................................................................172
Table 127.READ (10) - (28) .....................................................................................173
Table 128.Read (12) - (A8)........................................................................................175
Table 129.READ (16) - (88)......................................................................................176
Table 130.READ (32) - (7F/09) ................................................................................177
Table 131.READ BUFFER (3C) ...............................................................................179
Table 132.Read Buffer Header ..................................................................................180
Table 133.Read Buffer Description ...........................................................................181
Table 134.Echo Buffer Descriptor.............................................................................182
Table 135.READ CAPACITY (10) - (25).................................................................183
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
Table 136.Format of READ CAPACITY command reply........................................184
Table 137.Read Capcity (16) (9E/10)........................................................................185
Table 138.Returned Data Format...............................................................................185
Table 139.READ DEFECT DATA (37)....................................................................186
Table 140.Defect List Format....................................................................................187
Table 141.Defect List Header....................................................................................188
Table 142.Defect List Descriptor...............................................................................188
Table 143.Defect Descriptors of Bytes from Index Format ......................................189
Table 144.Defect Descriptors of Physical Sector Format..........................................189
Table 145.READ DEFECT DATA (B7)...................................................................190
Table 146.Defect List Header....................................................................................190
Table 147.Defect List Descriptor...............................................................................191
Table 148.Defect Descriptors of Bytes from Index Format ......................................191
Table 149.Defect Descriptors of Physical Sector Format..........................................191
Table 150.READ LONG (3E) ...................................................................................192
Table 151.REASSIGN BLOCKS (07) ......................................................................193
Table 152.Format of Reassign Blocks data ...............................................................194
Table 153.RECEIVE DIAGNOSTIC RESULTS (1C) .............................................195
Table 154.Receive Diagnostic Results page 0...........................................................195
Table 155.Receive Diagnostic Results Page 40.........................................................196
Table 156.Translated address ....................................................................................197
Table 157.RELEASE (17) .........................................................................................198
Table 158.RELEASE (57) .........................................................................................199
Table 159.REPORT DEVICE IDENTIFIER (A3/05)...............................................200
Table 160.Report Device Identifier parameter list ....................................................201
Table 161.REPORT LUNS (A0) ...............................................................................202
Table 162.LUN Reporting parameter list format.......................................................202
Table 163.REPORT SUPPORTED OPERATION CODES (A3/0C) .......................203
Table 164.Reporting Options.....................................................................................203
Table 165.All_command parameter data format .......................................................204
Table 166.Command Descriptor format ....................................................................204
Table 167.One_command parameter data format......................................................205
Table 168.One_command parameter support field....................................................206
Table 169.Command timeouts descriptor format .....................................................207
Table 170.Command timeouts descriptor Command Specific Field usage .............207
Table 171.Report Supported Task Management Functions (A3/0D)........................208
Table 172.REQUEST SENSE (03) ...........................................................................210
Table 173.RESERVE (16).........................................................................................211
Table 174.RESERVE (56).........................................................................................212
Table 175.REZERO UNIT (01).................................................................................213
Table 176.SEEK (6) - (0B) ........................................................................................214
Table 177.SEEK (10) - (2B) ......................................................................................214
Table 178.SEND DIAGNOSTIC (1D)......................................................................215
Table 179.SEND DIAGNOSTIC Function Code (1D) .............................................216
Table 180.Diagnostic Page 0 .....................................................................................217
Table 181.Diagnostic Page 3F ...................................................................................217
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
Table 182.Diagnostic Page 40 ...................................................................................220
Table 183.Address to translate...................................................................................221
Table 184.SET DEVICE IDENTIFIER (A4/06).......................................................222
Table 185.SET DEVICE IDENTIFIER, Parameter List ...........................................222
Table 186.START STOP UNIT (1B) ........................................................................223
Table 187.Power Conditions: ....................................................................................223
Table 188.SYNCHRONIZE CACHE (10) - (35).....................................................225
Table 189.Synchronize Cache (16) - (91)..................................................................226
Table 190.TEST UNIT READY (00)........................................................................227
Table 191.VERIFY (2F) ............................................................................................228
Table 192.Verify (12) - (AF) .....................................................................................231
Table 193.Verify (16) - (8F) ......................................................................................232
Table 194.Verify (32) - 7F/0A) .................................................................................233
Table 195.WRITE (6) - (0A) .....................................................................................235
Table 196.WRITE (10) - (2A) ...................................................................................236
Table 197.Write (12) - (AA)......................................................................................239
Table 198.Write (16) - (8A).......................................................................................240
Table 199.Write (32) - (7F/0B)..................................................................................241
Table 200.WRITE AND VERIFY (10) - (2E) ..........................................................243
Table 201.Write andVerify (12) - (AE).....................................................................244
Table 202.Write and Verify (16) - (8E).....................................................................245
Table 203.Write and Verify (32) - (7F/0C) ...............................................................246
Table 204.WRITE BUFFER (3B) .............................................................................247
Table 205.Write Buffer Header .................................................................................248
Table 206.WRITE LONG (3F)..................................................................................251
Table 207.WRITE SAME (41)..................................................................................253
Table 208.Write Same (16) - (93)..............................................................................254
Table 209.Write Same (32) - (7F/0D) .......................................................................255
Table 210.SCSI Status Byte. Format of the SCSI STATUS byte. ...........................257
Table 211.Spindle Motor Degraded Mode - Disable Auto Start ...............................265
Table 212.Spindle Motor Degraded Mode - Auto Start Delay/Spinning Up ............266
Table 213.Spindle Motor Degraded Mode - Spindle Start Failure............................267
Table 214.Spindle Motor Degraded Mode - Spindle Stopped by Command............268
Table 215.Self Configuration Failure Degraded Mode ............................................269
Table 216.Format Command Failure Degraded Mode..............................................270
Table 217.Sense data combinations with auto/recommend rewrite/reallocate..........274
Table 218.Short and Extended Self-Test Description ...............................................279
Table 219.Recommend Reassign Errors....................................................................284
Table 220.Log Only Errors........................................................................................284
Table 221.Format of Sense Data................................................................................293
Table 222.Field Pointer Bytes ...................................................................................321
Table 223.Actual Retry Count ...................................................................................322
Table 224.Progress Indication ...................................................................................323
Table 225.Unit Error Codes.......................................................................................325
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
1.0 General
1.1 Introduction
This document describes the specifications of the following HGST 2.5 inch SAS drives.
Table 1: Product ID table
Drive Name Model Name Type Capacity (GB) Interface
Ultrastar C15K147-147 HUC151414CSS600
Ultrastar C15K147-73 HUC151473CSS600
Note: The specifications in this document are subject to change without notice.
For technical and ordering information, please visit our website at http://www.hgst.com.
UCFSSA140
UCFSSA730
147 SAS
73 SAS
1.2 Glossary
Word Meaning
BMS Background Media Scan
Kb Kilobit = 1000 bits
Mb Megabit = 1,000,000 bits
GB Gigabyte = 1,000,000,000 bits
HDD Hard Disk Drive
MB Megabyte = 1,000,000 bytes
KB Kilobyte = 1000 bytes
SAS Serial Attached SCSI
SFF Small Form Factor
S.M.A.R.T. Self-Monitoring and Reporting Technology
1.3 Caution
This drive can be damaged by ESD (Electric Static Discharge). Any damages incurred to the drive after its removal from the
shipping package and the ESD protective bag are the responsibility of the user.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
1
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
2
2.0 Outline of the Drive
• Storage capacities of 147 GB and 73 GB
• 6 Gbps SAS interface
• Supports dual-ported operations
• Supports full duplex operations
• Variable sector size (512 - 528 in multiples of eight)
• Tagged Command Queuing support
• Automatic read/write data transfer
• 3.0 ms seek time in read operation for 147 GB
• 2.9 ms seek time in read operation for 73 GB
• Adaptive read ahead algorithm
• Write Cache
• Back to back write
• ECC On The Fly correction
• Automatic defect reallocation
• Self diagnostics at power on
• Closed loop actuator servo
• Load / Unload
• 15,030 RPM spindle rotation speed
• Automatic actuator lock
•( S . M . A . R . T .
• ANSI T10 Protection Information (End-to-End)
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
3
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
4
3.0 Fixed-disk Subsystem Description
3.1 Control Electronics
The drive is electronically controlled by a microprocessor, logic modules, digital/analog modules and various drivers and
receivers. The control electronics perform the following major functions:
• Perform self-checkout (diagnostics)
• Conduct a power-up sequence and calibrate the servo.
• Monitor various timers for head settling, servo failure, etc.
• Analyze servo signals to provide closed-loop control. These include position error signal and estimated velocity.
• Control of the voice coil motor driver to align the actuator onto a desired position
• Monitor the actuator position and determine the target track for a seek operation.
• Constantly monitor error conditions of the servo and take corresponding action if an error occurs.
• Control starting, stopping, and rotating speed of the spindle.
• Control and interpretation of all interface signals between the host controller and the drive
• Control of read/write accessing of the disk media, including defect management and error recovery
3.2 Head Disk Assembly
The head/disk assembly (HDA) is assembled in a clean room environment and contains disks, a spindle motor, actuator assembly, and voice coil motor. 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 a brushless, sensorless DC drive motor. Dynamic braking is used to stop the spindle quickly.
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 data 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.
Heads are moved out from the disks (unloaded) to protect the disk data during shipping, moving, or storage. At power down,
the heads are automatically unloaded from over the disk area and the head actuator locking mechanism will secure the heads in
the unload position.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
5
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
6
4.0 Drive Characteristics
4.1 Formatted Capacity
Table 2: Formatted Capacity
Description HUC151414CSS600 HUC151473CSS600
Label capacity 147 GB 73 GB
Number of heads 4 2
Number of disks 2 1
Total data bytes (512
bytes/sector)
Total logical data
blocks
147,015,821,824 73,407,900,160
287,140,277
(111D69B5h)
143,374,805
(88BB9D5h)
4.2 Data Sheet
Table 3: Data Sheet
Buffer to/from media 1394-1869 [Mb/sec]
Host to / from buffer (interface transfer rate) 1.5 Gbps, 3.0 Gbps or 6.0 Gbps
Data buffer size 64 MB
Number of buffer segments 1 - 254
Rotational speed 15,030 RPM
Recording density 1273 [Kbpi] (Max)
Track density 195,103 [TPI] (average)
Areal density 247 [Gb/sq. in.]
Data zone 22
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
7
4.3 Inquiry Information
4.3.1 Product ID
Product ID in Section 18.5.1.1, “Inquiry Data Format - EVPD = 0, Page Code = 0” on page 78, is as follows:
Table 4: Product ID in Inquiry Command
Product ID Description
HUC151414CSS600 147 GB, SAS
HUC151473CSS600 73 GB, SAS
4.3.2 World Wide ID - Block Assignment
Block Assignment of World Wide ID is as follows:
Table 5: Block assignment of World Wide ID in INQUIRY Command
Manufacturing Site Product Block Assignment
001h
001h
(1)
(1)
Singapore
HUC151414CSS600
HUC151473CSS600
Note (1) - Additional block assignment will be issued as needed based on actual production volume.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
8
4.4 Cylinder allocation
Table 6: Cylinder allocation
Zone Sectors /Tracks Cylinder/Zone Start Cylinder End Cylinder
0 1400 6609 1 6609
1 1365 801 6610 7410
2 1360 901 7411 8311
3 1353 2103 8312 10414
4 1344 2003 10415 12417
5 1330 2904 12418 15321
6 1306 4006 15322 19327
7 1288 2804 19328 22131
8 1260 5808 22132 27939
User Cylinder Allocation
9 1260 801 27940 28740
10 1232 2603 28742 31344
11 1213 3605 31345 34949
12 1190 2904 34950 37853
13 1176 2002 37855 39856
14 1166 1102 39857 40958
15 1120 9413 40959 50371
16 1085 601 50372 50972
17 1080 1602 50973 52574
18 1073 1802 52576 54377
19 1064 1502 54378 55879
20 1050 1703 55880 57582
21 1026 2303 57583 59885
Note: Values shown are nominal. Actual values will vary based on manufacturing optimization.“Mode Page 03 (Format
Device Parameters)” on page 141 and “Mode Page 0C (Notch Parameters)” on page 149 provide methods to determine actual
medium format and zone parameters for specific drives.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
9
4.5 Performance characteristics
Drive performance is characterized by the following parameters:
•Command overhead
•Mechanical head positioning
- Seek time
- Latency
•Data transfer speed
•Buffering operation (read ahead/write cache)
Note: All the above parameters contribute to drive performance. There are other parameters that contribute to the performance of the actual system. This specification tries to define the bare drive characteristics, not system throughput, which
depends on the system and the application.
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
10
4.5.1 Mechanical positioning
4.5.1.1 Average seek time (including settling)
Table 7: Mechanical positioning performance
Model Command Typical (ms) Max
147 GB Read 3.0 3.0
Write 3.4 3.5
73 GB Read 2.9 3.0
Write 3.3 3.4
“Typical” and “Max” are used throughout this document and are defined as follows:
Typical Average of the drive population tested at nominal environmental and voltage conditions.
Max Maximum value measured on any one drive over the full range of the environmental and voltage conditions.
(See 8.0, “Environment” on page 21and Section 9.0, “DC Power Requirements” on page 25 for ranges.)
The seek time is measured from the start of the actuator’s motion to the start of a reliable read or write operation. “Reliable
read or write” implies that error correction or recovery is not used to correct arrival problems. The average seek time is measured as the weighted average of all possible seek combinations.
Weighted average =
Max
∑
n 1=
-------------------------------------------------------------------------------------------------
max 1 n∠ +) Tnin Tnout+ ( ⋅ () =
max 1+ () max () ⋅
Where:
max = Maximum seek length
n= Seek length (1 to max)
Tn.in = Inward measured seek time for an n track seek
Tn.out = Outward measured seek time for an n track seek
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
11
4.5.1.2 Full stroke seek time
Table 8: Full stroke seek time
Command Typical (ms) Max
Read - All models 5.3 5.4
Write - All models 5.7 5.8
Full stroke seek is measured as the average of 1,000 full stroke seeks with a random head switch from both directions
(inward and outward).
4.5.1.3 Average latency
Table 9: Latency time
Rotation Time for a revolution (ms) Average latency (ms)
15,030 RPM 3.99 1.99
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
12
4.5.2 Drive ready time
Table 10: Drive ready time
Model Typical (sec) Maximum (sec)
147 GB Model 12 29.9
73 GB Model 8 29.9
4.5.3 Spindle stop time
Table 11: Spindle stop time
Model Typical (sec) Maximum (sec)
147 GB Model 10 15
73 GB Model 8 15
The period from power off to the complete stop of the rotating spindle is categorized as ’operating’. The Operating shock criteria apply during this period. Refer to section Operating shock, page 37.
4.5.4 Data transfer speed
Table 12: Data transfer speed (sector size 512 Byte case)
Description
Disk-buffer transfer
Instantaneous 0 All 179.6 179.6
Measured typical values for sus-
tained disk - buffer transfer rate
Instantaneous 21 All 131.6 131.6
Measured typical values for sus-
tained disk - buffer transfer rate
Notes:
• Instantaneous disk-buffer transfer rate is derived by: (Number of sectors on a track) x 512 x (revolutions/sec)
• For this table, '1 MB / Sec' should be interpreted as 1,000,000 bytes per Second.
• The number of sectors per track varies in each zone (radius) as a result of constant linear density recording, See
Table 6: , “Cylinder allocation” on page 9.
• Sustained disk-buffer transfer rate is the average rate measured while transferring multiple cylinders of data. It differs from the instantaneous transfer rate because of the time required to change tracks (Track skew and Head skew).
In addition, time is added for the occasional missed track switch.
Zone Model Read Write
0 147 GB 159.2 157.8
0 73 GB 159.2 157.8
21 147 GB 116.7 115.6
21 73 GB 116.7 115.6
Typical (MB / Sec)
4.5.5 Buffering operation (read ahead/write cache)
This hard disk drive has a buffer for read ahead (see 20.8, “Segmented Caching” on page 259)
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
13
HGST Ultrastar C15K147 (SAS) Hard Disk Drive Specification
14