Hard Disk Drive Specification
Deskstar 7K80
3.5 inch Ultra ATA/133 hard disk drive
Models:
HDS728040PLAT20
HDS728080PLAT20
Version 1.6 12 September 2006
Hard Disk Drive Specification
Deskstar 7K80
3.5 inch Ultra ATA/133 hard disk drive
Models:
HDS728040PLAT20
HDS728080PLAT20
Version 1.6 12 September 2006
1st Edition (Revision 1.3) (22 September 2005) Revised
2nd Edition (Revision 1.4)(16 December 2005) Revised
3rd Edition (Revision 1.5)(05 May 2006) Revised
4th Edition (Revision 1.6)(12 September 2006) Final
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Table Of Contents
1.0 General................................................................................................................11
1.1 Introduction..............................................................................................11
1.2 References................................................................................................11
1.3 Abbreviations...........................................................................................11
1.4 Caution.....................................................................................................13
2.0 General features of the drive ............................................................................15
3.0 Fixed-disk subsystem description.....................................................................19
3.1 Control electronics...................................................................................19
3.2 Head disk assembly ................................................................................19
3.3 Actuator ...................................................................................................19
4.0 Drive characteristics..........................................................................................21
4.1 Default logical drive parameters..............................................................21
4.2 Data sheet.................................................................................................22
4.3 World Wide Name Assignment...............................................................22
4.4 Drive organization ...................................................................................22
4.4.1 Drive format....................................................................................22
4.4.2 Cylinder allocation..........................................................................23
4.5 Performance characteristics.....................................................................24
4.5.1 Command overhead........................................................................24
4.5.2 Mechanical positioning...................................................................24
4.5.3 Drive ready time .............................................................................26
4.5.4 Data transfer speed..........................................................................27
4.5.5 Throughput......................................................................................28
4.5.6 Operating modes.............................................................................29
5.0 Defect flagging strategy.....................................................................................31
6.0 Electrical interface specification.......................................................................33
6.1 Connector location...................................................................................33
6.1.1 DC power connector.......................................................................33
6.1.2 AT signal connector........................................................................33
6.2 Signal definitions.....................................................................................34
6.3 Signal descriptions...................................................................................35
6.4 Interface logic signal levels .....................................................................38
6.5 Reset timings............................................................................................38
6.6 PIO timings..............................................................................................39
6.6.1 Write DRQ interval time.................................................................39
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6.6.2 Read DRQ interval time .................................................................39
6.7 Multi-word DMA timings........................................................................41
6.8 Ultra DMA timings..................................................................................42
6.8.1 Initiating Read DMA ......................................................................42
6.8.2 Host Pausing Read DMA................................................................43
6.8.3 Host Terminating Read DMA.........................................................44
6.8.4 Device Terminating Read DMA.....................................................45
6.8.5 Initiating Write DMA .....................................................................46
6.8.6 Device Pausing Write DMA...........................................................47
6.8.7 Device Terminating Write DMA....................................................48
6.8.8 Host Terminating Write DMA........................................................49
6.9 Addressing of registers ............................................................................50
6.9.1 Cabling............................................................................................50
7.0 Specification .......................................................................................................53
7.1 Jumper settings ........................................................................................53
7.1.1 Jumper pin location.........................................................................53
7.1.2 Jumper pin identification ................................................................53
7.1.3 Jumper pin assignment....................................................................54
7.1.4 Jumper positions .............................................................................54
7.2 Environment.............................................................................................58
7.2.1 Temperature and humidity..............................................................58
7.2.2 Corrosion test..................................................................................59
7.3 DC power requirements...........................................................................59
7.3.1 Input voltage ...................................................................................59
7.3.2 Power supply current (typical)........................................................60
7.3.3 Power supply generated ripple at drive power connector...............60
7.4 Reliability.................................................................................................61
7.4.1 Data integrity ..................................................................................61
7.4.2 Cable noise interference..................................................................61
7.4.3 Start/stop cycles..............................................................................61
7.4.4 Preventive maintenance..................................................................61
7.4.5 Data reliability ................................................................................61
7.4.6 Required power-off sequence.........................................................61
7.5 Mechanical specifications........................................................................62
7.5.1 Physical dimensions and weight.....................................................62
7.5.2 Mounting hole locations .................................................................63
7.5.3 Connector locations ........................................................................63
7.5.4 Drive mounting...............................................................................64
7.5.5 Heads unload and actuator lock......................................................64
7.6 Vibration and shock.................................................................................65
7.6.1 Operating vibration.........................................................................65
7.6.2 Nonoperating vibration...................................................................65
7.6.3 Operating shock..............................................................................66
7.6.4 Nonoperating shock........................................................................66
7.6.5 Nonoperating rotational shock........................................................67
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7.7 Acoustics..................................................................................................68
7.8 Identification labels..................................................................................68
7.9 Safety .......................................................................................................69
7.9.1 UL and CSA approval.....................................................................69
7.9.2 German safety mark........................................................................69
7.9.3 Flammability...................................................................................69
7.9.4 Safe handling ..................................................................................69
7.9.5 Environment....................................................................................69
7.9.6 Secondary circuit protection...........................................................69
7.10 Electromagnetic compatibility...............................................................70
7.10.1 C-TICK mark................................................................................70
7.10.2 BSMI mark ...................................................................................70
7.11 Packaging...............................................................................................70
8.0 General................................................................................................................71
8.1 Introduction..............................................................................................71
8.2 Terminology.............................................................................................71
8.3 Deviations from standard.........................................................................71
9.0 Registers..............................................................................................................73
9.1 Register set...............................................................................................73
9.2 Alternate Status Register .........................................................................74
9.3 Command Register ..................................................................................74
9.4 Cylinder High Register............................................................................74
9.5 Cylinder Low Register.............................................................................74
9.6 Data Register............................................................................................75
9.7 Device Control Register..........................................................................75
9.8 Drive Address Register............................................................................76
9.9 Device/Head Register ..............................................................................76
9.10 Error Register.........................................................................................77
9.11 Features Register....................................................................................77
9.12 Sector Count Register............................................................................77
9.13 Sector Number Register.........................................................................78
9.14 Status Register .......................................................................................78
10.0 General operation............................................................................................81
10.1 Reset response........................................................................................81
10.2 Register initialization.............................................................................82
10.3 Diagnostic and Reset considerations .....................................................83
10.4 Sector Addressing Mode........................................................................84
10.4.1 Logical CHS addressing mode .....................................................84
10.4.2 LBA addressing mode ..................................................................84
10.5 Power management features..................................................................85
10.5.1 Power mode ..................................................................................85
10.5.2 Power management commands ....................................................85
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10.5.3 Standby timer................................................................................85
10.5.4 Interface capability for power modes ...........................................86
10.6 S.M.A.R.T. Function .............................................................................87
10.6.1 Attributes ......................................................................................87
10.6.2 Attribute values.............................................................................87
10.6.3 Attribute thresholds.......................................................................87
10.6.4 Threshold exceeded condition ......................................................87
10.6.5 S.M.A.R.T. commands .................................................................87
10.6.6 Off-line read scanning ..................................................................87
10.6.7 Error log........................................................................................88
10.6.8 Self-test.........................................................................................88
10.7 Security Mode Feature Set.....................................................................89
10.7.1 Security mode ...............................................................................89
10.7.2 Security level ................................................................................89
10.7.3 Passwords......................................................................................90
10.7.4 Operation example........................................................................90
10.7.5 Command table.............................................................................94
10.8 Host Protected Area Feature..................................................................96
10.8.1 Example for operation (In LBA Mode)........................................96
10.8.2 Security extensions .......................................................................97
10.9 Seek overlap...........................................................................................98
10.10 Write cache function............................................................................99
10.11 Reassign function.................................................................................100
10.11.1 Auto Reassign function...............................................................100
10.12 Power-Up in Standby feature set .........................................................101
10.13 Advanced Power Management feature set (APM) ..............................102
10.14 Automatic Acoustic Management feature set (AAM).........................103
10.15 Address Offset Feature ........................................................................104
10.15.1 Enable/Disable Address Offset Mode.........................................104
10.15.2 Identify Device Data...................................................................105
10.15.3 Exceptions in Address Offset Mode..........................................105
10.16 48-bit Address Feature Set...................................................................106
10.17 Streaming feature Set...........................................................................106
10.17.1 Streaming commands..................................................................107
10.17.2 Urgent bit....................................................................................107
10.17.3 Flush to Disk bit..........................................................................107
10.17.4 Not Sequential bit .......................................................................108
10.17.5 Read Continuous bit....................................................................108
10.17.6 Write Continuous bit...................................................................108
10.17.7 Handle Streaming Error bit.........................................................108
10.17.8 Streaming Logs...........................................................................108
11.0 Command protocol ..........................................................................................109
11.1 PIO Data In commands..........................................................................109
11.2 PIO Data Out Commands ......................................................................110
11.3 Non-data commands .............................................................................112
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11.4 DMA commands....................................................................................113
12.0 Command descriptions....................................................................................115
12.1 Check Power Mode (E5h/98h) ..............................................................120
12.2 Configure Stream (51h) .........................................................................121
12.3 Device Configuration Overlay (B1h) ....................................................123
12.3.1 DEVICE CONFIGURATION RESTORE (Subcommand C0h).123
12.3.2 DEVICE CONFIGURATION FREEZE LOCK (subcommand C1h)123
12.3.3 DEVICE CONFIGURATION IDENTIFY (subcommand C2h).124
12.3.4 DEVICE CONFIGURATION SET (subcommand C3h).............124
12.4 Download Microcode (92h)...................................................................127
12.5 Execute Device Diagnostic (90h) ..........................................................129
12.6 Flush Cache (E7h) .................................................................................130
12.7 Flush Cache Ext (EAh)..........................................................................131
12.8 Format Track (50h)................................................................................132
12.9 Format Unit (F7h)..................................................................................134
12.10 Identify Device (ECh)..........................................................................135
12.11 Idle (E3h/97h).....................................................................................143
12.12 Idle Immediate (E1h/95h)....................................................................144
12.13 Initialize Device Parameters (91h) ......................................................145
12.14 Read Buffer (E4h)................................................................................146
12.15 Read DMA (C8h/C9h).........................................................................147
12.16 Read DMA Ext (25h)...........................................................................149
12.17 Read Log Ext (2Fh) .............................................................................151
12.17.1 General Purpose Log Directory..................................................153
12.17.2 Extended Comprehensive SMART Error Log............................154
12.17.3 Extended Self-test log sector ......................................................156
12.17.4 Read Stream Error Log...............................................................157
12.17.5 Write Stream Error Log..............................................................158
12.17.6 Streaming Performance Log.......................................................159
12.18 Read Long (22h/23h)...........................................................................161
12.19 Read Multiple (C4h)............................................................................163
12.20 Read Multiple Ext (29h) ......................................................................164
12.21 Read Native Max ADDRESS (F8h)....................................................166
12.22 Read Native Max Address Ext (27h)...................................................167
12.23 Read Sectors (20h/21h)........................................................................168
12.24 Read Sector(s) Ext (24h)......................................................................170
12.25 Read Stream DMA (2Ah)....................................................................172
12.26 Read Stream PIO (2Bh).......................................................................176
12.27 Read Verify Sectors (40h/41h) ............................................................179
12.28 Read Verify Sectors Ext (42h).............................................................181
12.29 Recalibrate (1xh)..................................................................................183
12.30 Security Disable Password (F6h).........................................................184
12.31 Security Erase Prepare.........................................................................185
12.32 Security Erase Unit (F4h) ....................................................................186
12.33 Security Freeze Lock (F5h) .................................................................188
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12.34 Security Set Password (F1h)................................................................189
12.35 Security Unlock (F2h) .........................................................................191
12.36 Seek (7xh)...........................................................................................193
12.37 Set Features (EFh) ...............................................................................194
12.37.1 Set Transfer mode.......................................................................195
12.37.2 Write Cache ................................................................................195
12.37.3 Advanced Power Management...................................................195
12.37.4 Automatic Acoustic Management ..............................................197
12.38 Set Max ADDRESS (F9h)...................................................................198
12.38.1 Set Max Set Password (Feature=01h).........................................200
12.38.2 Set Max Lock (Feature=02h)......................................................201
12.38.3 Set Max Unlock (Feature = 03h) ................................................202
12.38.4 Set Max Freeze Lock (Feature = 04h) ........................................203
12.39 Set Max Address Ext (37h)..................................................................204
12.40 Set Multiple (C6h) ...............................................................................206
12.41 Sleep (E6h/99h) ...................................................................................207
12.42 S.M.A.R.T. Function Set (B0h)...........................................................208
12.42.1 S.M.A.R.T. Function Subcommands.........................................209
12.42.2 Device Attribute Data Structure .................................................213
12.42.3 Device Attribute Thresholds data structure ................................216
12.42.4 S.M.A.R.T. Log Directory..........................................................218
12.42.5 S.M.A.R.T. summary error log sector ........................................218
12.42.6 Self-test log data structure .........................................................220
12.42.7 Error reporting ............................................................................221
12.43 Standby (E2h/96h)...............................................................................222
12.44 Standby Immediate (E0h/94h).............................................................224
12.45 Write Buffer (E8h)...............................................................................225
12.46 Write DMA (CAh/CBh) ......................................................................226
12.47 Write DMA Ext (35h)..........................................................................228
12.48 Write Log Ext (3Fh) ............................................................................230
12.49 Write Long (32h/33h)..........................................................................231
12.50 Write Multiple (C5h) ...........................................................................233
12.51 Write Multiple Ext (39h) .....................................................................235
12.52 Write Sectors (30h/31h).......................................................................237
12.53 Write Sectors Ext.................................................................................239
12.54 Write Stream DMA (3Ah)...................................................................241
12.55 Write Stream PIO (3Bh) ......................................................................243
13.0 Timings .............................................................................................................247
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6
List of Tables
Table 1.Formatted capacities.....................................................................................21
Table 2.Mechanical positioning performance ...........................................................22
Table 3.Word Wide Name Assignment.....................................................................22
Table 4.Cylinder allocation........................................................................................23
Table 5.Command overhead......................................................................................24
Table 6.Mechanical positioning performance ...........................................................24
Table 7.Full stroke seek time.....................................................................................25
Table 8.Head switch time ..........................................................................................25
Table 9.Single track seek time...................................................................................26
Table 10.Latency Time..............................................................................................26
Table 11.Drive ready time .........................................................................................26
Table 12.Data transfer speed .....................................................................................27
Table 13.Simple Sequential Access performance......................................................28
Table 14.Random Access Performance.....................................................................28
Table 15.Description of operating modes..................................................................29
Table 16.Mode transition times .................................................................................29
Table 17.PATA Plist physical format........................................................................31
Table 18.Signal definitions........................................................................................34
Table 19.Special signal definitions for Ultra DMA...................................................35
Table 20.System reset timing chart............................................................................38
Table 21.System reset timing.....................................................................................38
Table 22.PIO cycle timings chart ..............................................................................39
Table 23.Multiword DMA cycle timing chart...........................................................41
Table 24.Multiword DMA cycle timings ..................................................................41
Table 25.Ultra DMA cycle timings (Initiating Read)................................................42
Table 26.Ultra DMA cycle timing chart (Host pausing Read)..................................43
Table 27.Ultra DMA cycle timings (Host pausing Read) .........................................43
Table 28.Ultra DMA cycle timing chart (Host pausing Read)..................................44
Table 29.Ultra DMA cycle timings (Host pausing Read) .........................................44
Table 30.Ultra DMA cycle timing chart (Host pausing Read)..................................45
Table 31.Ultra DMA cycle timings (Device Terminating Read) ..............................45
Table 32.Ultra DMA cycle timing chart (Initiating Write) .......................................46
Table 33.Ultra DMA cycle timing chart (Device Pausing Write).............................47
Table 34.Ultra DMA cycle timings (Device Pausing Write).....................................47
Table 35.Ultra DMA cycle timing chart (Device Terminating Write)......................48
Table 36.Ultra DMA cycle timings (Device TerminatingWrite)...............................48
Table 37.Ultra DMA cycle timing chart (Host Terminating Write)..........................49
Table 38.Ultra DMA cycle timings (Host Terminating Write) .................................49
Table 39.I/O address map..........................................................................................50
Table 40.Jumper positions for capacity clip to 32GB ...............................................56
Table 41.Jumper settings for Disabling Auto Spin....................................................56
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Table 42.Temperature and humidity..........................................................................58
Table 43.Limits of temperature and humidity ...........................................................59
Table 44.Input voltage...............................................................................................59
Table 45.Power supply current of 80GB and 40GB models .....................................60
Table 46.Power supply generated ripple at drive power connector...........................60
Table 47.Random vibration PSD...............................................................................65
Table 48.Random vibration PSD profile break points (operating)............................65
Table 49.Random Vibration PSD profile breakpoints (nonoperating)......................65
Table 50.Sinusoidal shock wave................................................................................67
Table 51.Rotational shock .......................................................................................67
Table 52.Sound power levels.....................................................................................68
Table 53.Register Set.................................................................................................73
Table 54.Alternate Status Register ............................................................................74
Table 55.Device Control Register .............................................................................75
Table 56.Drive Address Register...............................................................................76
Table 57.Device Head/Register.................................................................................76
Table 58.Error Register..............................................................................................77
Table 59.Status Register ............................................................................................78
Table 60.Reset response table....................................................................................81
Table 61.Default Register Values..............................................................................82
Table 62.Diagnostic codes.........................................................................................82
Table 63.Reset error register values ..........................................................................83
Table 64.Power conditions ........................................................................................86
Table 65.Initial setting...............................................................................................91
Table 66.Usual operation for POR ............................................................................92
Table 67.Password lost ..............................................................................................93
Table 68.Seek overlap................................................................................................98
Table 69.Device address map before and after Set Feature.......................................104
Table 70.Command Set..............................................................................................115
Table 71.Command Set (subcommand).....................................................................118
Table 72.Check Power Mode command (E5h/98h)...................................................120
Table 73.Configure Stream (51h)..............................................................................121
Table 74.Check Power Mode Command (E5h/98h)..................................................123
Table 75.Device Configuration Overlay Features register values.............................123
Table 76.Device Configuration Overlay Data structure............................................125
Table 77.DCO error information definition...............................................................126
Table 78.Downlad Microcode Command (92h)........................................................127
Table 79.Execute Device Diagnostic command (90h) ..............................................129
Table 80.Flush Cache command (E7h)......................................................................130
Table 81.Flush Cache Ext Command (EAh) .............................................................131
Table 82.Format Track command (50h)....................................................................132
Table 83.Format Unit command (F7h)......................................................................134
Table 84.Identify Device command (ECh)................................................................135
Table 85.Identify device information (Part 1 of 7)....................................................136
Table 86.Identify device information (Part 2 of 7)...................................................137
Table 87.Identify device information (Part 3 of 7)....................................................138
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Table 88.Identify device information (Part 4 of 7)....................................................139
Table 89.Identify device information (Part 5 of 7)....................................................140
Table 90.Identify device information (Part 6 of 7)....................................................141
Table 91.Identify device information (Part 7 of 7)....................................................142
Table 92.Idle command (E3h/97h)............................................................................143
Table 93.Idle Immediate command (E1h/95h)..........................................................144
Table 94.Initialize Device Parameters command (91h).............................................145
Table 95.Read Buffer (E4h).......................................................................................146
Table 96.Read DMA command (C8h/C9h)...............................................................147
Table 97.Read DMA Ext Command (25h)................................................................149
Table 98.Read Log Ext Command (2Fh)...................................................................151
Table 99.Log Address Definition ..............................................................................152
Table 100.General Purpose Log Directory................................................................153
Table 101.Extended Comprehensive SMART Error Log .........................................154
Table 102.Extended Error log data structure.............................................................154
Table 103.Command data structure...........................................................................155
Table 104.Error data structure ...................................................................................155
Table 105.Read Stream Error Log.............................................................................157
Table 106.Stream Error Log entry.............................................................................158
Table 107.Write Stream Error Log............................................................................159
Table 108.Streaming Performance Parameters log....................................................160
Table 109.Sector Time Array Entry (Linearly Interpolated).....................................160
Table 110.Access Time Array Entry (Linearly Interpolated)....................................160
Table 111.Read Long (22h/23h)................................................................................161
Table 112.Read Multiple (C4h).................................................................................163
Table 113.Read DMA Ext Command (25h)..............................................................164
Table 114.Read Native Max ADDRESS (F8h).........................................................166
Table 115.Read Native Max Address Ext command (27h).......................................167
Table 116.Read Sectors Command (20h/21h)...........................................................168
Table 117.Read Sector(s) Ext command (24h).........................................................170
Table 118.Read Stream DMA Command (2Ah) .......................................................172
Table 119.Read Stream PIO (2Bh)............................................................................176
Table 120.Read Verify Sectors (40h/41h).................................................................179
Table 121.Read Verify Sectors Ext command (42h).................................................181
Table 122.Recalibrate (1xh) ......................................................................................183
Table 123.Security Disable Password (F6h)..............................................................184
Table 124.Password Information for Security Disable Password command.............184
Table 125.Security Disable Password (F3h)..............................................................185
Table 126.Security Erase Unit (F4h).........................................................................186
Table 127.Erase Unit information .............................................................................186
Table 128.Security Freeze Lock command (F5h) .....................................................188
Table 129.Security Set Password command (F1h)....................................................189
Table 130.Security Set Password Information ..........................................................189
Table 131.Security Unlock command (F2h)..............................................................191
Table 132.Seek command (7xh)................................................................................193
Table 133.Set Features command (EFh)....................................................................194
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Table 134.Set Max ADDRESS command (F9h).......................................................198
Table 135.Set Max Set Password command..............................................................200
Table 136.Set Max Set Password data contents ........................................................200
Table 137.Set Max Lock command...........................................................................201
Table 138.Set Max Unlock command (F9h) .............................................................202
Table 139.Set Max Freeze Lock (F9h)......................................................................203
Table 140.Set Max Address Ext command (37h)......................................................204
Table 141.Set Multiple command (C6h) ...................................................................206
Table 142.Sleep command (E6h/99h) .......................................................................207
Table 143.S.M.A.R.T. Function Set command (B0h)...............................................208
Table 144.Device Attribute Data Structure ...............................................................213
Table 145.Individual Attribute Data Structure ..........................................................213
Table 146.Device Attribute Thresholds Data Structure.............................................217
Table 147.Individual Threshold Data Structure ........................................................217
Table 148.S.M.A.R.T. Log Directory........................................................................218
Table 149.S.M.A.R.T. summary error log sector ....................................................218
Table 150.Error log data structure............................................................................219
Table 151.Command data structure...........................................................................219
Table 152.Error data structure ...................................................................................219
Table 153.Self-test log data structure ........................................................................220
Table 154.S.M.A.R.T. Error Codes...........................................................................221
Table 155.Standby (E2h/96h)....................................................................................222
Table 156.Standby Immediate (E0h/94h)..................................................................224
Table 157.Write Buffer (E8h)....................................................................................225
Table 158.Write DMA (CAh/CBh) ...........................................................................226
Table 159.Write DMA Ext Command (35h)............................................................228
Table 160.Write Log Ext Command (3Fh)...............................................................230
Table 161.Write Long (32h/33h)...............................................................................231
Table 162.Write Multiple (C5h)................................................................................233
Table 163.WriteMultiple Ext Command (39h)..........................................................235
Table 164.Write Sectors command (30h/31h)...........................................................237
Table 165.Write Sectors Ext......................................................................................239
Table 166.Write Stream DMA Command (3Ah) ......................................................241
Table 167.Write Stream PIO Command (3Bh) .........................................................243
Deskstar 7K80 Hard Disk Drive Specifacation
10
1.0 General
1.1 Introduction
This document describes the specifications of the Deskstar 7K80, a 3.5-inch hard disk drive with A TA interface and
a rotational speed of 7200 RPM.
HDS728040PLAT20 41.1GB
HDS728080PLAT20 82.3GB
For Serial ATA function specification, please refer to ’Serial ATA function - Addendum.’
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
GB 1,000,000,000 bytes
Deskstar 7K80 Hard Disk Drive Specification
11
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
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
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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 40 GB and 80 GB
• Spindle speeds of 7200 RPM
• Fluid Dynamic Bearing motor
• Enhanced IDE 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 8.8 ms in Read Operation. 8.5 ms typical without Command Overhead
• Sector Buffer size of 2048 K (Upper 270 KB is used for firmware)
• Ring buffer implementation
• Write Cache
• Advanced ECC On The Fly (EOF)
• Automatic Error Recovery procedures for read and write commands
• Self Diagnostics on Power on and resident diagnostics
• PIO 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)
• 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
• ATA -7 co mpliant
• UDMA 133 support
• Streaming feature set support
• World Wide Name
Note: For serial ATA model, please refer "Serial ATA Function Specification - Addendum."
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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 capacities
HDS728040PLAT20 HDS728080PLAT20
Physical Layout
Label capacity (GB) 40 80
Bytes per sector 512 512
Sectors per track 567-1170 567-1170
Number of heads 1 2
Number of disks 1 1
Data sectors per cylinder 567-1170 1134-2340
Data cylinders per zone 1444-4501 1444-4501
Logical layout
Number of heads 16 16
Number of Sectors per track 63 63
Number of Cylinders
Number of sectors 80,418,240 160,836,480
Total logical data bytes 41,174,138,880 82,348,277,760
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.
1
2
16,383 16,383
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) 689
Track density [TPI] 87 / 90 / 93
Areal density - max (Gbits/in
Number of data bands 30
1
(KB)
2
)
2048
62
4.3 World Wide Name Assignment
Tabl e 3: Word Wide Name Assignment
Description
Organization Hitachi GST Hitachi GST
Manufacturing Site Sriracha Plant, Thailand China
Product Deskstar 7K80 Deskstar 7K80
OUI 000CCAh 000CCAh
SHBU Block Assignment 201h 300h
Port/Node ID 11b 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 1,444 1,170
1 3,095 1,147
2 3,095 1,147
3 3,389 1,134
4 3,043 1,125
5 3,845 1,080
6 3,946 1,080
7 4,501 1,026
8 4,001 1,026
9 3,232 1,012
10 3,726 990
11 3,193 972
12 4,286 945
13 3,120 918
14 3,093 900
15 3,106 877
16 4,037 855
17 4,073 810
18 3,573 810
19 3,276 742
20 2,675 742
21 2,408 720
22 1,960 702
23 1,568 675
24 1,568 675
25 2,082 630
26 2,157 630
27 1,700 607
28 1,570 594
29 1,521 567
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 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.
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)
Read (cache hit) (from Command Write to DRQ)
Write (from Command Write to DRQ)
Seek (from Command Write to Seek Start)
0.3 0.3
0.1 0.1
0.015 0.05
0.3 not applicable
Time (typical) for
queued command
(ms)
4.5.2 Mechanical positioning
4.5.2.1 Average seek time (without command overhead, including settling)
Table 6: Mechanical positioning performance
Command type Typical (ms) Max (ms)
Read 40-80GB 8.5 9.5
Write 40-80GB 9.5 10.5
Read (Quiet Seek mode) 19.5 20.5
Write (Quiet Seek mode) 20.5 21.5
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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 Ty pical (ms) Max (ms)
Read 40-80GB 15.1 18.1
Write 40-80GB 16.1 19.1
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).
4.5.2.3 Head switch time (head skew)
Table 8: Head switch time
Head switch time-typical (ms)
90 kTPI 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
The measuring method is given in 4.5.5, “Throughput” on page 28.
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4.5.2.4 Cylinder switch time (cylinder skew)
Cylinder switch time - typical (ms)
1.6
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 28.
4.5.2.5 Single track seek time (without command overhead, including settling)
Tabl e 9: Single track seek time
Function Typical (ms) Max (ms)
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).
4.5.2.6 Average latency
Table 10: Latency Time
Rotational speed
(RPM)
Time for one
revolution (ms)
Average latency
(ms)
7200 RPM 8.3 4.17
4.5.3 Drive ready time
Table 11: Drive ready time
Power on to ready Typical (sec) Maximum (sec)
620
Ready The condition in which the drive is able to perform a media access command (for exam-
ple- read, write) immediately.
Power on This 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.
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