Hard Disk Drive Specification
Deskstar 7K400
3.5 inch Ultra ATA/133 hard disk drive
3.5 inch Serial ATA hard disk drive
Models: HDS724040KLAT80
HDS724040KLSA80
Version 1.7 12 September 2006
Hard Disk Drive Specification
Deskstar 7K400
3.5 inch Ultra ATA/133 hard disk drive
3.5 inch Ultra Serial/ATA hard disk drive
Models: HDS724040KLAT80
HDS724040KLSA80
Version 1.7 12 September 2006
1st Edition (Revision 0.1) (02 February 2004) Preliminary
2nd Edition (Revision 1.0) (05 April 2004) Revision
3rd Edition (Revision 1.1) (06 April 2004) Revision
4th Edition (Revision 1.2) (14 June 2004) Revision
5th Edition (Revision 1.3) (24 June 2004) Revision
6th Edition (Revision 1.4) (19 August 2004) Revision
7th Edition (Revision 1.5)(21 September 2005) Revision
8th Edition (Revision 1.6)(04 May 2006) Revision
9th Edition (Revision 1.7) (12 September 2006) Final
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Table of Contents
1.0 General..............................................................................................................1
1.1 Introduction.............................................................................................1
1.2 References...............................................................................................1
1.3 Abbreviations..........................................................................................1
1.4 Caution....................................................................................................3
2.0 General features of the drive ..........................................................................5
3.0 Fixed-disk subsystem description...................................................................9
3.1 Control electronics..................................................................................9
3.2 Head disk assembly ...............................................................................9
3.3 Actuator ..................................................................................................9
4.0 Drive characteristics........................................................................................11
4.1 Default logical drive parameters.............................................................11
4.2 Data sheet................................................................................................12
4.3 World Wide Name Assignment..............................................................12
4.4 Drive organization ..................................................................................12
4.4.1 Drive format....................................................................................12
4.4.2 Cylinder allocation..........................................................................13
4.5 Performance characteristics....................................................................14
4.5.1 Command overhead........................................................................14
4.5.2 Mechanical positioning...................................................................15
4.5.3 Drive ready time .............................................................................16
4.5.4 Data transfer speed..........................................................................17
4.5.5 Throughput......................................................................................18
4.5.6 Operating modes.............................................................................19
5.0 Defect flagging strategy...................................................................................21
6.0 Specification .....................................................................................................23
6.1 Electrical Interface..................................................................................23
6.1.1 Connector location..........................................................................23
6.1.2 DC power connector.......................................................................24
6.1.3 AT signal connector........................................................................24
6.2 Signal definitions (PATA model)...........................................................25
6.3 Signal descriptions..................................................................................26
6.4 Interface logic signal levels (PATA model) ...........................................29
6.4.1 Signal definition (SATA model).....................................................29
6.4.2 Out of band signaling (SATA model).............................................30
6.5 Signal timings (PATA model)................................................................31
6.5.1 Reset timings...................................................................................31
6.6 PIO timings.............................................................................................32
6.6.1 Write DRQ interval time.................................................................32
6.6.2 Read DRQ interval time .................................................................33
6.7 Multi word DMA timings.......................................................................34
6.8 Ultra DMA timings.................................................................................35
6.8.1 Initiating Read DMA ......................................................................35
Deskstar 7K400 Hard Disk Drive Specification
6.8.2 Host Pausing Read DMA................................................................36
6.8.3 Host Terminating Read DMA.........................................................37
6.8.4 Device Terminating Read DMA.....................................................38
6.8.5 Initiating Write DMA .....................................................................39
6.8.6 Device Pausing Write DMA...........................................................40
6.8.7 Device Terminating Write DMA....................................................41
6.8.8 Host Terminating Write DMA........................................................42
6.9 Addressing of registers ...........................................................................43
6.9.1 Cabling............................................................................................43
7.0 Jumper Settings................................................................................................45
7.1 Connector location..................................................................................45
7.1.1 Jumper pin identification ................................................................45
7.1.2 Jumper pin assignment....................................................................46
7.1.3 Jumper positions .............................................................................46
7.2 Environment............................................................................................50
7.2.1 Temperature and humidity..............................................................50
7.2.2 Corrosion test..................................................................................51
7.3 DC power requirements..........................................................................51
7.3.1 Input voltage ...................................................................................51
7.3.2 Power supply current (typical)........................................................51
7.3.3 Power supply generated ripple at drive power connector............... 52
7.4 Reliability................................................................................................53
7.4.1 Data integrity ..................................................................................53
7.4.2 Cable noise interference..................................................................53
7.4.3 Start/stop cycles..............................................................................53
7.4.4 Preventive maintenance..................................................................53
7.4.5 Data reliability ................................................................................53
7.4.6 Required power-off sequence.........................................................53
7.5 Mechanical specifications.......................................................................54
7.5.1 Physical dimensions and weight.....................................................54
7.5.2 Mounting hole locations .................................................................55
7.5.3 Connector locations ........................................................................56
7.5.4 Drive mounting...............................................................................57
7.5.5 Heads unload and actuator lock......................................................57
7.6 Vibration and shock................................................................................58
7.6.1 Operating vibration.........................................................................58
7.6.2 Nonoperating vibration...................................................................58
7.6.3 Operating shock..............................................................................59
7.6.4 Nonoperating shock........................................................................59
7.6.5 Nonoperating rotational shock........................................................60
7.7 Acoustics.................................................................................................61
7.8 Identification labels.................................................................................61
7.9 Safety ......................................................................................................62
7.9.1 UL and CSA standard conformity ..................................................62
7.9.2 German safety mark........................................................................62
7.9.3 Flammability...................................................................................62
Deskstar 7K400 Hard Disk Drive Specification
7.9.4 Safe handling ..................................................................................62
7.9.5 Environment....................................................................................62
7.9.6 Secondary circuit protection...........................................................62
7.10 Electromagnetic compatibility..............................................................63
7.10.1 CE mark........................................................................................63
7.10.2 C-TICK mark................................................................................63
7.10.3 BSMI mark ...................................................................................63
7.11 Packaging..............................................................................................63
8.0 General..............................................................................................................65
8.1 Introduction.............................................................................................65
8.2 Terminology............................................................................................65
8.3 Deviations from standard........................................................................65
9.0 Registers............................................................................................................67
9.1 Register set..............................................................................................67
9.2 Alternate Status Register ........................................................................68
9.3 Command Register .................................................................................68
9.4 Cylinder High Register...........................................................................68
9.5 Cylinder Low Register............................................................................68
9.6 Data Register...........................................................................................69
9.7 Device Control Register.........................................................................69
9.8 Drive Address Register...........................................................................70
9.9 Device/Head Register .............................................................................70
9.10 Error Register........................................................................................71
9.11 Features Register...................................................................................71
9.12 Sector Count Register...........................................................................71
9.13 Sector Number Register........................................................................72
9.14 Status Register ......................................................................................72
10.0 General operation..........................................................................................75
10.1 Reset response.......................................................................................75
10.2 Register initialization............................................................................76
10.3 Diagnostic and Reset considerations ....................................................77
10.4 Sector Addressing Mode .......................................................................78
10.4.1 Logical CHS addressing mode .....................................................78
10.4.2 LBA addressing mode ..................................................................78
10.5 Overlapped and queued feature ............................................................78
10.6 Power management features.................................................................80
10.6.1 Power mode ..................................................................................80
10.6.2 Power management commands ....................................................80
10.6.3 Standby timer................................................................................80
10.6.4 Interface capability for power modes ...........................................81
10.7 S.M.A.R.T. Function ............................................................................82
10.7.1 Attributes ......................................................................................82
10.7.2 Attribute values.............................................................................82
10.7.3 Attribute thresholds.......................................................................82
10.7.4 Threshold exceeded condition ......................................................82
10.7.5 S.M.A.R.T. commands .................................................................82
Deskstar 7K400 Hard Disk Drive Specification
10.7.6 Off-line read scanning ..................................................................82
10.7.7 Error log........................................................................................83
10.7.8 Self-test.........................................................................................83
10.8 Security Mode Feature Set....................................................................84
10.8.1 Security mode ...............................................................................84
10.8.2 Security level ................................................................................84
10.8.3 Passwords......................................................................................85
10.8.4 Operation example........................................................................85
10.8.5 Command table.............................................................................88
10.9 Host Protected Area Feature.................................................................89
10.9.1 Example for operation (In LBA Mode)........................................89
10.9.2 Security extensions .......................................................................90
10.10 Seek overlap........................................................................................91
10.11 Write cache function...........................................................................92
10.12 Reassign function................................................................................93
10.12.1 Auto Reassign function...............................................................93
10.13 Power-Up in Standby feature set ........................................................94
10.14 Advanced Power Management feature set (APM) .............................95
10.15 Automatic Acoustic Management feature set (AAM)........................96
10.16 Address Offset Feature .......................................................................97
10.16.1 Enable/Disable Address Offset Mode.........................................98
10.16.2 Identify Device Data...................................................................98
10.16.3 Exceptions in Address Offset Mode..........................................98
10.17 48-bit Address Feature Set..................................................................99
10.18 Streaming Feature Set.........................................................................99
10.18.1 Streaming commands..................................................................100
10.18.2 Urgent bit....................................................................................100
10.18.3 Flush to Disk bit..........................................................................100
10.18.4 Not Sequential bit .......................................................................100
10.18.5 Read Continuous bit....................................................................101
10.18.6 Write Continuous bit...................................................................101
10.18.7 Handle Streaming Error bit.........................................................101
10.18.8 Streaming Logs...........................................................................101
11.0 Command protocol ........................................................................................103
11.1 PIO Data In commands.........................................................................103
11.2 PIO Data Out Commands .....................................................................104
11.3 Non-data commands ............................................................................105
11.4 DMA commands...................................................................................107
11.5 DMA queued commands ......................................................................108
12.0 Command descriptions..................................................................................109
12.1 Check Power Mode (E5h/98h) .............................................................113
12.2 Configure Stream (51h) ........................................................................114
12.3 Device Configuration Overlay (B1h) ...................................................116
12.3.1 DEVICE CONFIGURATION RESTORE (Subcommand C0h).116
12.3.2 DEVICE CONFIGURATION FREEZE LOCK (Subcommand C1h)116
12.3.3 DEVICE CONFIGURATION IDENTIFY (Subcommand C2h) 117
Deskstar 7K400 Hard Disk Drive Specification
12.3.4 DEVICE CONFIGURATION SET (Subcommand C3h) ............117
12.4 Download Microcode (92h)..................................................................120
12.5 Execute Device Diagnostic (90h) .........................................................121
12.6 Flush Cache (E7h) ................................................................................122
12.7 Flush Cache Ext (EAh).........................................................................123
12.8 Format Track (50h)...............................................................................124
12.9 Format Unit (F7h).................................................................................125
12.10 Identify Device (ECh).........................................................................126
12.11 Idle (E3h/97h)....................................................................................137
12.12 Idle Immediate (E1h/95h)...................................................................138
12.13 Initialize Device Parameters (91h) .....................................................139
12.14 NOP (00h)...........................................................................................140
12.15 Read Buffer (E4h)...............................................................................141
12.16 Read DMA (C8h/C9h)........................................................................142
12.17 Read DMA Ext (25h)..........................................................................144
12.18 Read DMA Queued (C7h)..................................................................146
12.19 Read DMA Queued Ext (26h) ............................................................148
12.20 Read Log Ext (2Fh) ............................................................................150
12.20.1 General Purpose Log Directory..................................................152
12.20.2 Extended Comprehensive SMART Error Log............................153
12.20.3 Extended Self-test log sector ......................................................155
12.20.4 Read Stream Error log ................................................................156
12.20.5 Write Stream Error log ...............................................................157
12.20.6 Streaming Performance log ........................................................158
12.21 Read Long (22h/23h)..........................................................................160
12.22 Read Multiple (C4h)...........................................................................162
12.23 Read Multiple Ext (29h) .....................................................................164
12.24 Read Native Max ADDRESS (F8h)...................................................166
12.25 Read Native Max Address Ext (27h)..................................................167
12.26 Read Sectors (20h/21h).......................................................................168
12.27 Read Sector(s) Ext (24h).....................................................................170
12.28 Read Stream DMA (2Ah)...................................................................172
12.29 Read Stream PIO (2Bh)......................................................................175
12.30 Read Verify Sectors (40h/41h) ...........................................................178
12.31 Read Verify Sector(s) (42h)................................................................180
12.32 Recalibrate (1xh).................................................................................182
12.33 Security Disable Password (F6h)........................................................183
12.34 Security Disable Password (F3h)........................................................184
12.35 Security Erase Unit (F4h) ...................................................................185
12.36 Security Freeze Lock (F5h) ................................................................187
12.37 Security Set Password (F1h)...............................................................188
12.38 Security Unlock (F2h) ........................................................................190
12.39 Seek (7xh)..........................................................................................191
12.40 Service (A2h .......................................................................................)192
12.41 Set Features (EFh) ..............................................................................193
12.41.1 Set Transfer mode.......................................................................194
Deskstar 7K400 Hard Disk Drive Specification
12.41.2 Write Cache ................................................................................194
12.41.3 Advanced Power Management...................................................194
12.41.4 Automatic Acoustic Management ..............................................195
12.41.5 Set Maximum Host Interface Sector Time .................................196
12.42 Set Max ADDRESS (F9h)..................................................................197
12.42.1 Set Max Set Password (Feature=01h).........................................199
12.42.2 Set Max Lock (Feature=02h)......................................................200
12.42.3 Set Max Unlock (Feature = 03h) ................................................201
12.42.4 Set Max Freeze Lock (Feature = 04h) ........................................202
12.43 Set Max Address Ext (37h).................................................................203
12.44 Set Multiple (C6h) ..............................................................................205
12.45 Sleep (E6h/99h) ..................................................................................206
12.46 S.M.A.R.T. Function Set (B0h)..........................................................207
12.46.1 S.M.A.R.T. Function Subcommands.........................................207
12.46.2 Device Attribute Data Structure .................................................211
12.46.3 Device Attribute Thresholds data structure ................................214
12.46.4 S.M.A.R.T. Log Directory..........................................................216
12.46.5 S.M.A.R.T. summary error log sector ........................................216
12.46.6 Self-test log data structure .........................................................218
12.46.7 Selective self-test log data structure ...........................................219
12.46.8 Error reporting ............................................................................220
12.47 Standby (E2h/96h)..............................................................................221
12.48 Standby Immediate (E0h/94h)............................................................222
12.49 Write Buffer (E8h)..............................................................................223
12.50 Write DMA (CAh/CBh) .....................................................................224
12.51 Write DMA Ext (35h).........................................................................226
12.52 Write DMA Queued (CCh).................................................................228
12.53 Write DMA Queued Ext (36h) ...........................................................230
12.54 Write Log Ext (3Fh) ...........................................................................232
12.55 Write Long (32h/33h).........................................................................233
12.56 Write Multiple (C5h) ..........................................................................235
12.57 Write Multiple Ext (39h) ....................................................................237
12.58 Write Sectors (30h/31h)......................................................................239
12.59 Write Sector(s) (34h) ..........................................................................241
12.60 Write Stream DMA (3Ah)..................................................................243
12.61 Write Stream PIO (3Bh) .....................................................................246
13.0 Time-out values..............................................................................................249
Deskstar 7K400 Hard Disk Drive Specification
List of Tables
Table 1. Formatted capacity...........................................................................11
Table 2. Mechanical positioning performance ..............................................12
Table 3. World Wide Name Assignment.......................................................12
Table 4. Cylinder allocation...........................................................................13
Table 5. Command overhead.........................................................................14
Table 6. Mechanical positioning performance ..............................................15
Table 7. Full stroke seek time........................................................................15
Table 8. Single Track Seek Time...................................................................16
Table 9. Latency Time...................................................................................16
Table 10. Drive ready time ............................................................................16
Table 11. Data transfer speed ........................................................................17
Table 12. Simple Sequential Access performance.........................................18
Table 13. Random Access performance ........................................................18
Table 14. Description of operating modes.....................................................19
Table 15. Mode transition times ....................................................................19
Table 16. Plist physical format ......................................................................21
Table 17. Signal definitions...........................................................................25
Table 18. Special signal definitions for Ultra DMA ......................................26
Table 19. Interface connector pins and I/O signals........................................29
Table 20. The timing of COMRESET, COMINT and COMWAKE ............30
Table 21. Parameter descriptions...................................................................30
Table 22. System reset timing chart...............................................................31
Table 23. PIO cycle timings chart .................................................................32
Table 24. Multiword DMA cycle timing chart..............................................34
Table 25. Multiword DMA cycle timings .....................................................34
Table 26. Ultra DMA cycle timing chart (Initiating Read) ...........................35
Table 27. Ultra DMA cycle timings (Initiating Read)...................................35
Table 28. Ultra DMA cycle timing chart (Host pausing Read).....................36
Table 29. Ultra DMA cycle timings (Host pausing Read) ............................36
Table 30. Ultra DMA cycle timing chart (Host terminating Read)...............37
Table 31. Ultra DMA cycle timings (Host terminating Read) ......................37
Table 32. Ultra DMA cycle timing chart (Device terminating Read) ...........38
Table 33. Ultra DMA cycle timings (Device Terminating Read) .................38
Table 34. Ultra DMA cycle timing chart (Initiating Write) ..........................39
Table 35. Ultra DMA cycle timings (Initiating Write)..................................39
Table 36. Ultra DMA cycle timing chart (Device Pausing Write)................40
Table 37. Ultra DMA cycle timing chart (Device Pausing Write)................40
Table 38. Ultra DMA cycle timing chart (Device Terminating Write).........41
Table 39. Ultra DMA cycle timings (Device terminating Write)..................41
Table 40. Ultra DMA cycle timing chart (Host Terminating Write).............42
Table 41. Ultra DMA cycle timings (Host Terminating Write) ....................42
Table 42. I/O address map.............................................................................43
Table 43. Jumper positions for capacity clip to 2GB/32GB..........................48
7K400 Hard Disk Drive Specification
Table 44. Jumper settings for Disabling Auto Spin.......................................48
Table 45. Temperature and humidity.............................................................50
Table 46. Limits of temperature and humidity ..............................................50
Table 47. Input voltage..................................................................................51
Table 48. Power supply current of PATA model ..........................................51
Table 49. Power supply current of SATA model ..........................................52
Table 50. Power supply generated ripple at drive power connector..............52
Table 51. Random vibration PSD..................................................................58
Table 52. Random vibration PSD profile break points (operating)...............58
Table 53. Random Vibration PSD profile breakpoints (nonoperating).........58
Table 54. Sinusoidal shock wave...................................................................60
Table 55. Rotational shock ..........................................................................60
Table 56. Sound power levels........................................................................61
Table 57. Sound power levels........................................................................61
Table 58. Register Set....................................................................................67
Table 59. Alternate Status Register ...............................................................68
Table 60. Device Control Register ................................................................69
Table 61. Drive Address Register..................................................................70
Table 62. Device Head/Register....................................................................70
Table 63. Error Register.................................................................................71
Table 64. Status Register ...............................................................................72
Table 65. Reset response table.......................................................................75
Table 66. Default Register Values.................................................................76
Table 67. Diagnostic codes............................................................................76
Table 68. Reset error register values .............................................................77
Table 69. Power conditions ...........................................................................81
Table 70. Command table for device lock operation.....................................88
Table 71. Seek overlap...................................................................................91
Table 72. Enable/Disable Address Offset Mode ........................................... 98
Table 73. Command Set (1 of 2)....................................................................109
Table 74. Command Set (2 of 2)....................................................................110
Table 75. Command Set (subcommand)........................................................111
Table 76. Check Power Mode command (E5h/98h)......................................113
Table 77. Configure Stream Command (51h) ...............................................114
Table 78. Check Power Mode Command (E5h/98h).....................................116
Table 79. Device Configuration Overlay Features register values................116
Table 80. Device Configuration Overlay Data structure...............................118
Table 81. DCO error information definition ..................................................119
Table 82. Download Microcode Command (92h).........................................120
Table 83. Execute Device Diagnostic command (90h) .................................121
Table 84. Flush Cache command (E7h).........................................................122
Table 85. Flush Cache Ext Command (EAh) ................................................123
Table 86. Format Track command (50h).......................................................124
Table 87. Format Unit command (F7h).........................................................125
Table 88. Identify Device command (ECh)...................................................126
Table 89. Identify device information (Part 1 of 7).......................................127
7K400 Hard Disk Drive Specification
Table 90. Identify device information (Part 2 of 7)......................................128
Table 91. Identify device information (Part 3 of 7).......................................129
Table 92. Identify device information (Part 4 of 7).......................................130
Table 93. Identify device information (Part 5 of 7 ........................................132
Table 94. Identify device information (Part 6 of 7).......................................134
Table 95. Identify device information (Part 7 of 7).......................................136
Table 96. Idle command (E3h/97h)...............................................................137
Table 97. Idle Immediate command (E1h/95h).............................................138
Table 98. Initialize Device Parameters command (91h)................................139
Table 99. NOP Command (00h)....................................................................140
Table 100. Read Buffer (E4h)........................................................................141
Table 101. Read DMA command (C8h/C9h)................................................142
Table 102. Read DMA Ext Command (25h).................................................144
Table 103. Read DMA command (C8h/C9h)................................................146
Table 104. Read DMA Ext Command (25h).................................................148
Table 105. Read Log Ext Command (2Fh)....................................................150
Table 106. Log Address Definition ...............................................................151
Table 107. General Purpose Log Directory...................................................152
Table 108. Extended Comprehensive SMART Error Log ............................153
Table 109. Extended Error log data structure................................................153
Table 110. Command data structure..............................................................154
Table 111. Error data structure ......................................................................154
Table 112. Extended Self-test log descriptor entry........................................156
Table 113. Read Stream Error Log................................................................156
Table 114. Stream Error Log entry................................................................157
Table 115. Write Stream Error Log...............................................................158
Table 116. Streaming Performance Parameters log.......................................158
Table 117. Sector Time Array Entry (Linearly Interpolated)........................159
Table 118. Position Array Entry (Linearly Interpolated) ..............................159
Table 119. Access Time Array Entry (Linearly Interpolated).......................159
Table 120. Read Long (22h/23h)...................................................................160
Table 121. Read Multiple (C4h)....................................................................162
Table 122. Read DMA Ext Command (25h).................................................164
Table 123. Read Native Max ADDRESS (F8h)............................................166
Table 124. Read Native Max Address Ext command (27h)..........................167
Table 125. Read Sectors Command (20h/21h)..............................................168
Table 126. Read Sector(s) Ext command (24h)............................................170
Table 127. Read Stream DMA Command (2Ah) ..........................................172
Table 128. Read Stream PIO Command (2Bh) .............................................175
Table 129. Read Verify Sectors (40h/41h)....................................................178
Table 130. Read Verify Sector(s) command (42h)........................................180
Table 131. Recalibrate (1xh) .........................................................................182
Table 132. Security Disable Password (F6h).................................................183
Table 133. Password Information for Security Disable Password command183
Table 134. Security Disable Password (F3h).................................................184
Table 135. Security Erase Unit (F4h)............................................................185
7K400 Hard Disk Drive Specification
Table 136. Erase Unit information ................................................................185
Table 137. Security Freeze Lock command (F5h) ........................................187
Table 138. Security Set Password command (F1h).......................................188
Table 139. Security Set Password Information .............................................188
Table 140. Security Unlock command (F2h).................................................190
Table 141. Seek command (7xh)...................................................................191
Table 142. Service command (A2h)..............................................................192
Table 143. Set Features command (EFh).......................................................193
Table 144. Set Max ADDRESS command (F9h)..........................................197
Table 145. Set Max Set Password command.................................................199
Table 146. Set Max Set Password data contents ...........................................199
Table 147. Set Max Lock command..............................................................200
Table 148. Set Max Unlock command (F9h) ................................................201
Table 149. Set Max Freeze Lock (F9h).........................................................202
Table 150. Set Max Address Ext command (37h).........................................203
Table 151. Set Multiple command (C6h) ......................................................205
Table 152. Sleep command (E6h/99h) ..........................................................206
Table 153. S.M.A.R.T. Function Set command (B0h)..................................207
Table 154. Device Attribute Data Structure ..................................................211
Table 155. Individual Attribute Data Structure .............................................211
Table 156. Device Attribute Thresholds Data Structure................................215
Table 157. Individual Threshold Data Structure ...........................................215
Table 158. S.M.A.R.T. Log Directory...........................................................216
Table 159. S.M.A.R.T. summary error log sector .......................................216
Table 160. Error log data structure...............................................................217
Table 161. Command data structure..............................................................217
Table 162. Error data structure ......................................................................217
Table 163. Self-test log data structure ...........................................................218
Table 164. Selective self-test log data structure ............................................219
Table 165. S.M.A.R.T. Error Codes..............................................................220
Table 166. Standby (E2h/96h).......................................................................221
Table 167. Standby Immediate (E0h/94h).....................................................222
Table 168. Write Buffer (E8h).......................................................................223
Table 169. Write DMA (CAh/CBh) ..............................................................224
Table 170. Write DMA Ext Command (35h)...............................................226
Table 171. Write DMA Queued Command CAh/CBh) ................................228
Table 172. Write DMA Queued Ext Command (36h)..................................230
Table 173. Write Log Ext Command (3Fh)..................................................232
Table 174. Write Long (32h/33h)..................................................................233
Table 175. Write Multiple (C5h)...................................................................235
Table 176. Write Log Ext Command (3Fh)..................................................237
Table 177. Write Sectors command (30h/31h)..............................................239
Table 178. Write Sector(s) Command (34h) ................................................241
Table 179. Write Stream DMA Command (3Ah) .........................................243
Table 180. Write Stream PIO Command (3Bh) ............................................246
7K400 Hard Disk Drive Specification
1.0 General
1.1 Introduction
This document describes the specifications of the Deskstar 7K400, a 3.5-inch, 7200 -rpm hard disk drive with the
following model numbers:
• HDS724040KLAT80 / HDS724040KLSA80 (400 GB)
These specifications are subject to change without notice.
1.2 References
• Information Technology - AT Attachment with Packet Interface-7.
1.3 Abbreviations
Abbreviation Meaning
AAmpere
AC alternating current
AT Advanced Technology
ATA Advanced Technology Attachment
BIOS Basic Input/Output System
C Celsius
CSA Canadian Standards Association
C-UL Canadian-Underwriters Laborato ry
Cyl cylinder
DC Direct Current
DFT Drive Fitness Test
DMA Direct Memory Access
ECC error correction code
EEC European Economic Community
EMC electromagnetic compatibility
ERP Error Recovery Procedure
ESD E lectrostatic Discharge
FCC Federal Com munications Commission
FRU field replacement unit
G gravity (a unit of force)
2
G
/Hz (32 ft/sec)2 per Hertz
Gb 1,000,000,000 bits
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GB 1,000,000,000 bytes
GND ground
h hexadecimal
HDD hard disk drive
Hz Hertz
I Input
ILS integrated lead suspension
I/O Input/Output
ISO International Standards Organization
KB 1,000 bytes
Kbpi 1000 bits per inch
kgf-cm kilogram (force)-centimeter
KHz kilohertz
LBA logical block addressing
Lw unit of A-weighted sound power
mmeter
max maximum
MB 1,000 , 000 bytes
Mbps 1,000,000 bits per second
MHz megahertz
MLC Machine Level Control
mm millimeter
ms millisecond
us, ms microsecond
OOutput
OD Open Drain Programmed Input/Output
POH power on hours
Pop population
P/N part number
p-p peak-to-peak
PSD power spectral density
RES radiated electromagnetic susceptibility
RFI radio frequency interference
RH relative humidity
RMS root mea n square
RPM revolu t ions per minute
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RST reset
R/W read/write
sec second
SELV secondary low voltage
S.M.A.R.TSelf-Monitoring, Analysis, and Reporting Technology
TPI tracks per inch
Trk track
TTL transistor-transistor logic
UL Underwriters Laboratory
Vvolt
VDE Verband Deutscher Electrotechniker
Wwatt
3-state transistor-transistor tristate logic
1.4 Caution
• Do not apply force to the top cover.
• Do not cover the breathing hole on the top cover.
• Do not touch the interface connector pins or the surface of the printed circuit board
• This drive can be damaged by electrostatic discharge (ESD). Any damages incurred to the drive after its
removal from the shipping package and the ESD protective bag are the responsibility of the user.
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2.0 General features of the drive
• Formatted capacities of 400 GB
• Spindle speeds of 7200 RPM
• Fluid Dynamic Bearing motor
• Enhanced IDE interface / Serial ATA interface
• Sector format of 512 bytes/sector
• Closed-loop actuator servo
• Load/Unload mechanism, non head disk contact start/stop
• Automatic Actuator lock
• Interleave factor 1:1
• Seek time of 8.5 ms in Read Operation 9.2ms Write Operation typical (without Command Overhead)
• Sector Buffer size 8192 KB (Upper 271 KB is used for firmware)
• Ring buffer implementation
• Write Cache
• Queued feature support
• Advanced ECC On The Fly (EOF)
• Automatic Error Recovery procedures for read and write commands
• Self Diagnostics on Power on and resident diagnostics
• PIO Register/Data Transfer Mode 4 (16.6 MB/s)
• DMA Data Transfer
• Multiword mode Mode 2 (16.6 MB/s)
• Ultra DMA Mode 6 (133 MB/s)
• Serial ATA Data Transfer1.5Gbps
• CHS and LBA mode
• Power saving modes/Low RPM idle mode (APM)
• S.M.A.R.T. (Self Monitoring and Analysis Reporting Technology)
• Support security feature
• Quiet Seek mode (AAM)
• 48-bit addressing feature
• Adaptive BPI
• RVS (Rotational Vibration Safeguard)
• ATA - 7 compliant
• UDMA 133 support
• Streaming feature set support
• World Wide Name
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Part 1. Functional specification
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3.0 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 position ing 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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4.0 Drive characteristics
4.1 Default logical drive parameters
Table 1: Formatted capacity
HDS724040KLAT20 / HDS724040KLSA80
Physical Layout
Label capacity (GB) 400
Bytes per sector 512
Sectors per track 567-1170
Number of heads 10
Number of disks 5
Data sectors per cylinder 5670-11700
Data cylinders per zone 1200 - 4900
Logical layout
Number of heads 16
Number of Sectors per track 63
Number of Cylinders
1
2
16,383
Number of sectors 781,422,768
Total logical data bytes 400,088,457,216
Notes:
1. Number of cylinders: For drives with capacities greater than 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.
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4.2 Data sheet
Table 2: Mechanical positioning performance
Data transfer rates (Mbps) 757
Interface transfer rates (Mb/s) 133
Data buffer size
Rotational speed (RPM) 7200
Number of buffer segments (read) up to 128
Number of buffer segments (write) up to 63
Recording density - max (Kbpi) 686
Track density [TPI] 90
Areal density - max (Gbits/in
Number of data bands 30
1
Upper 271 KB is used for firmware
1
(KB)
2
)
8192
62
4.3 World Wide Name Assignment
Table 3: World Wide Name Assignment
Description
Organization Hitachi Glo bal Storage Technologies
Manufacturing Site Prachiburi, Thailand
Product Deskstar 7K400
OUI 000CCAh
SHBU Block Assignment 200h
Port / Node ID 11b
4.4 Drive organization
4.4.1 Drive format
Upon shipment from manufacturing the drive satisfies the sector continuity in the physical format by means of the defect flagging strategy described in Section 5.0, “Defect flagging strategy” on page 21 in order to provide the maximum performance to
users.
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4.4.2 Cylinder allocation
Table 4: Cylinder allocation
Data Zone Physical Cylinders Blk/Trk
0 2,783 1170
1 4,500 1134
2 4,800 1080
3 4,900 1080
4 4800 1012
5 4900 1012
6 4900 990
7 4300 945
8 4200 918
9 3900 900
10 3900 877
11 3100 877
12 3300 855
13 2700 855
14 3200 810
15 2600 810
16 3000 742
17 2200 742
18 2000 742
19 2600 742
20 1600 720
21 2300 675
22 1400 648
23 1800 648
24 1400 648
25 1700 630
26 1700 607
27 1200 607
28 1200 594
29 1400 567
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 Hitachi Global Storage Technologies manufacturing and includes data sent from a defect location.
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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 (Look ahead/Write cache)
All the above parameters contribute to dri ve 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.
4.5.1 Command overhead
Command overhead is defined as the time required from the time the command is written into the command register by a host
to the assertion of DRQ for the first data byte of a READ command when the requested data is not in the buffer excluding
Physical seek time and Latency.
The table below gives average command overhead.
Table 5: Command overhead
Command type (Drive is in quiescent state) Time (typical)
(ms)
Read (cache not hit) (from Command Write to Seek Start) 0.5 0.5
Read (cache hit) (from Command Write to DRQ) 0.1 0.1
Write (from Command Write to DRQ) 0.015 0.05
Seek (from Command Write to Seek Start) 0.5 not applicable
Time (typical) for
queued command
(ms)
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4.5.2 Mechanical positioning
4.5.2.1 Average seek time (including settling)
Table 6: Mechanical positioning performance
Command type Typical (ms) Max (ms)
Read 8.2 9.2
Write 9.2 10.2
Read (Quiet Seek mode) 19.5 20.5
Write (Quiet Seek mode) 20.5 21.5
The terms “Typical” and “Max” are used throughout this document and are defined as follows:
Typical The 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.
The seek time is measured from the start of the actuator’s motion to the start of a reliable read or write operation. A 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.
max
Σ (m10 n)(Tnin + Tnout)
n=1
Weighted Average = ––––––––––––––––––––––––––––
(max + 1)(max)
where
max = Maximum seek length
n= Seek length (1 to max)
Tnin = Inward measured seek time for an n track seek
Tnout = Outward measured seek time for an n track seek
4.5.2.2 Full stroke seek time (without command overhead, including settling)
Table 7: Full stroke seek time
Function Typical (ms) Max (ms)
Read 14.7 17.7
Write 15.7 18.7
Read (Quiet Seek mode) 32.5 35.5
Write (Quiet Seek mode) 33.5 36.5
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).
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4.5.2.3 Head switch time (head skew)
Head switch time-typical (ms) 1.4
Head switch time is defined as the amount of time required by the fixed disk to complete a seek of the next sequential track
after reading the last sector in the current track
4.5.2.4 Cylinder switch time (cylinder skew)
Cylinder switch time is defined as the amount of time required by the fixed disk to access the next sequential block after reading the last sector in the current cylinder.
The measuring method is given in Section 4.5.5, “Throughput” on page 18.
4.5.2.5 Single track seek time (without command overhead, including settling)
Tabl e 8: Sing le Track Seek Time
Function
Read 0.8 1.5
Write 1.3 2.0
Read (Quiet Seek mode) 0.8 1.5
Write (Quiet Seek mode) 1 .3 2.0
Single track seek is measured as the average of one (1) single track seek from every track in both directions (inward and outward).
Typ ical (ms) Max (ms)
4.5.2.6 Average latency
Table 9: Latency Time
Rotational speed
(RPM)
7200 RPM 8.3 4.17
Time for one
revolution (ms)
Average latency
(ms)
4.5.3 Drive ready time
Table 10: Drive ready time
Typical (sec)
Maximum (sec)
Power on to ready
Ready The condition in which the drive is able to perform a media access command (for example- read, write) immediately.
Power onThis includes the time required for the internal self diagnostics.
Note: Max Power On to ready time is the maximum time period that Device 0 waits for Device 1 to assert PDIAG.
20 31
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