IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive User manual

Hard disk drive specifications
Deskstar 40GV & 75GXP
3.5 inch Ultra ATA/100 hard disk drive
DTLA-307015
DTLA-307020
DTLA-307030
DTLA-307045
DTLA-307060
DTLA-307075
DTLA-305010
DTLA-305020
DTLA-305030
DTLA-305040
Models:
Revision 2.0 S07-4778-04
IBM storage products - official published specifications

5th Edition (Revision 2.0) S07N-4778-04 (20 June, 2000, 2 November 2000)
4th Edition (Revision 1.2) S07N-4778-03 (30 May, 2000)
3rd Edition (Revision 1.1) S07N-4778-02(17 May, 2000)
2nd Edition (Revision 1.0) S07N-4778-01 (10 May, 2000)
1st Edition (Revision 0.1) S07N-4778-00 (15 March, 2000) Preliminary
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subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.
IBM storage products - official published specifications

Table of contents
42
7.3.2 Jumper positions
........................................................
41
7.3.1 Jumper pin assignment
..................................................
41
7.3 Jumper settings
..............................................................
40
7.2.6 Cabling
................................................................
40
7.2.5 Addressing of registers
...................................................
32
7.2.4 Ultra DMA timings
.......................................................
31
7.2.3 Multiword DMA timings
...................................................
29
7.2.2 PIO timings
.............................................................
28
7.2.1 Reset timings
...........................................................
28
7.2 Signal timings
................................................................
27
7.1.3 Interface logic signal levels
...............................................
24
7.1.2 Signal definition
.........................................................
23
7.1.1 Connectors
.............................................................
23
7.1 Electrical interface
...........................................................
23
7.0 Specification
...............................................................
21
6.3 Equipment status
............................................................
21
6.2 Write cache
.................................................................
21
6.1 Data loss at Power off
........................................................
21
6.0 Data integrity
...............................................................
19
5.0 Defect flagging strategy
.....................................................
17
4.4.7 Operating modes
........................................................
16
4.4.6 Throughput
.............................................................
15
4.4.5 Buffering Operation (Look ahead/Write cache)
..............................
15
4.4.4 Data transfer speed
.....................................................
14
4.4.3 Drive ready time
........................................................
12
4.4.2 Mechanical positioning
...................................................
12
4.4.1 Command overhead
.....................................................
11
4.4 Performance characteristics
...................................................
11
4.3.2 Cylinder allocation
.......................................................
10
4.3.1 Drive format
...........................................................
10
4.3 Drive organization
............................................................
10
4.2 Data sheet
...................................................................
9
4.1 Default logical drive parameters
..................................................
9
4.0 Drive characteristics
..........................................................
7
3.3 Actuator
.......................................................................
7
3.2
Head disk assembly
............................................................
7
3.1
Control Electronics
.............................................................
7
3.0 Fixed disk subsystem description
.............................................
5
Part 1. Functional specification
..............................................
3
2.0 General features
..............................................................
2
1.3 References
....................................................................
2
1.2 General caution
................................................................
1
1.1
Glossary
......................................................................
1
1.0 General
......................................................................
ix
Figures
.........................................................................
Deskstar 40GV & 75GXP hard disk drive specifications
iii

73
9.10 Features Register
...........................................................
72
9.9 Error Register
...............................................................
72
9.8 Device/Head Register
........................................................
71
9.7 Drive Address Register
.......................................................
71
9.6 Device Control Register
.......................................................
71
9.5 Data Register
...............................................................
70
9.4 Cylinder Low Register
........................................................
70
9.3 Cylinder High Register
........................................................
70
9.2 Command Register
..........................................................
70
9.1 Alternate Status Register
.....................................................
69
9.0 Registers
...................................................................
67
8.2 Deviations from standard
.....................................................
67
8.1 Terminology
.................................................................
67
8.0 General
....................................................................
65
Part 2. Interface specification
..............................................
63
7.14 C-Tick Mark
................................................................
63
7.13 CE Mark
...................................................................
63
7.12 Electromagnetic compatibility
.................................................
62
7.11.5 Secondary Circuit Protection
.............................................
62
7.11.4 Flammability
...........................................................
62
7.11.3 German Safety Mark
...................................................
62
7.11.2 IEC compliance
........................................................
62
7.11.1 UL and CSA standard conformity
.........................................
62
7.11Safety
......................................................................
62
7.10 Identification labels
..........................................................
61
7.9 Acoustics
....................................................................
60
7.8.5 Rotational shock
........................................................
59
7.8.4 Nonoperating shock
.....................................................
59
7.8.3 Operating shock
........................................................
58
7.8.2 Nonoperating vibration
...................................................
58
7.8.1 Operating vibration
......................................................
58
7.8 Vibration and shock
...........................................................
57
7.7.6 Heads unload and actuator lock
...........................................
57
7.7.5 Drive mounting
..........................................................
57
7.7.4 Connector locations
.....................................................
56
7.7.3 Hole locations
..........................................................
55
7.7.2 Physical dimensions
.....................................................
54
7.7.1 Outline
.................................................................
54
7.7 Mechanical specifications
......................................................
53
7.6.4 Data reliability
..........................................................
53
7.6.3 Preventive maintenance
..................................................
53
7.6.2 Start/stop cycles
........................................................
53
7.6.1 Cable noise interference
.................................................
53
7.6 Reliability
....................................................................
52
7.5.5 Energy consumption efficiency
............................................
50
7.5.4 Start Up Current
........................................................
50
7.5.3 Power supply generated ripple at drive power connector
......................
48
7.5.2 Power supply current (typical)
............................................
48
7.5.1 Input voltage
............................................................
48
7.5 DC power requirements
.......................................................
46
7.4.1 Temperature and humidity
................................................
46
7.4 Environment
.................................................................
Deskstar 40GV & 75GXP hard disk drive specifications
iv

110
12.2 Execute Device Diagnostic (90h)
.............................................
109
12.1 Check Power Mode (E5h/98h)
...............................................
105
12.0 Command descriptions
...................................................
103
11.5 DMA queued commands
....................................................
102
11.4 DMA commands
...........................................................
101
11.3 Non-data commands
........................................................
99
11.2 PIO Data Out commands
.....................................................
97
11.1 PIO Data In commands
......................................................
97
11.0 Command Protocol
........................................................
95
10.15.3 Exceptions in Address Offset Mode
......................................
95
10.15.2 Identify Device Data
...................................................
94
10.15.1 Enable/Disable Address Offset Mode
....................................
94
10.15 Address Offset Feature
.....................................................
93
10.14 Automatic Acoustic Management feature set (AAM)
.............................
93
10.13
Advanced Power Management feature set (APM)
...............................
92
10.12
Power-Up In Standby feature set
.............................................
92
10.11.1 Auto Reassign Function
................................................
92
10.11 Reassign Function
..........................................................
91
10.10 Write cache function
........................................................
91
10.9 Seek Overlap
...............................................................
90
10.8.2
Security extensions
.....................................................
89
10.8.1 Example for operation (in LBA mode)
.....................................
89
10.8 Host Protected Area Function
................................................
87
10.7.5 Command table
........................................................
84
10.7.4 Operation example
.....................................................
83
10.7.3 Passwords
............................................................
83
10.7.2 Security level
..........................................................
83
10.7.1 Security mode
.........................................................
83
10.7 Security Mode Feature Set
...................................................
82
10.6.8
Self-test
..............................................................
82
10.6.7 Error log
..............................................................
82
10.6.6
Off-line read scanning
..................................................
82
10.6.5 S.M.A.R.T. commands
..................................................
82
10.6.4 Threshold Exceeded Condition
...........................................
81
10.6.3 Attribute thresholds
.....................................................
81
10.6.2 Attribute values
........................................................
81
10.6.1 Attributes
.............................................................
81
10.6 S.M.A.R.T. function
.........................................................
81
10.5.4 Interface capability for power modes
......................................
80
10.5.3 Standby timer
..........................................................
80
10.5.2 Power management commands
..........................................
80
10.5.1 Power modes
..........................................................
80
10.5 Power management feature
...................................................
79
10.4 Overlapped and queued feature
...............................................
78
10.3.2 LBA Addressing Mode
..................................................
78
10.3.1 Logical CHS Addressing Mode
...........................................
78
10.3 Sector Addressing Mode
.....................................................
77
10.2 Diagnostic and reset considerations
...........................................
76
10.1.1 Register initialization
....................................................
75
10.1 Reset response
.............................................................
75
10.0 General operation
.........................................................
74
9.13 Status Register
.............................................................
73
9.12 Sector Number Register
.....................................................
73
9.11 Sector Count Register
.......................................................
Deskstar 40GV & 75GXP hard disk drive specifications
v

178
12.32.16 Error reporting
......................................................
177
12.32.15 Self-test log data structure
...........................................
174
12.32.14 SMART error log sector
..............................................
173
12.32.13 Device Attribute Thresholds Data Structure
.............................
169
12.32.12 Device Attributes Data Structure
......................................
168
12.32.11 SMART Enable/Disable Automatic Off-line (Subcommand DBh)
...........
168
12.32.10 SMART Return Status (Subcommand DAh)
............................
167
12.32.9 SMART Disable Operations (Subcommand D9h)
........................
167
12.32.8 SMART Enable Operations (Subcommand D8h)
.........................
167
12.32.7 SMART Write Log Sector (Subcommand D6h)
...........................
167
12.32.6 SMART Read Log Sector (Subcommand D5h)
...........................
166
12.32.5 SMART Execute Off-line Immediate (Subcommand D4h)
..................
166
12.32.4 SMART Save Attribute Values (Subcommand D3h)
.......................
166
12.32.3 SMART Enable/Disable Attribute Autosave (Subcommand D2h)
............
166
12.32.2 SMART Read Attribute Thresholds (Subcommand D1h)
...................
166
12.32.1 SMART Read Attribute Values (Subcommand D0h)
......................
165
12.32 S.M.A.R.T. Function Set (B0h)
..............................................
164
12.31 Sleep (E6h/99h)
...........................................................
163
12.30 Set Multiple (C6h)
.........................................................
162
12.29.4 Set Max Freeze Lock (Feature = 04h)
..................................
161
12.29.3
Set Max Unlock (Feature = 03h)
.......................................
160
12.29.2
Set Max Lock (Feature = 02h)
.........................................
159
12.29.1
Set Max Set Password (Feature = 01h)
.................................
157
12.29 Set Max Address (F9h)
....................................................
156
12.28.4 Automatic Acoustic Management
.......................................
155
12.28.3 Advanced Power Management
.........................................
155
12.28.2 Write Cache
.........................................................
155
12.28.1 Set Transfer mode
...................................................
154
12.28 Set Features (EFh)
........................................................
153
12.27 Service (A2h)
.............................................................
152
12.26 Seek (7xh)
...............................................................
150
12.25 Security Unlock (F2h)
......................................................
148
12.24 Security Set Password (F1h)
................................................
147
12.23 Security Freeze Lock (F5h)
.................................................
145
12.22 Security Erase Unit (F4h)
...................................................
144
12.21 Security Erase Prepare (F3h)
...............................................
142
12.20 Security Disable Password (F6h)
............................................
141
12.19 Recalibrate (1xh)
..........................................................
139
12.18 Read Verify Sectors (40h/41h)
..............................................
137
12.17 Read Sectors (20h/21h)
....................................................
136
12.16 Read Native Max Address (F8h)
.............................................
134
12.15 Read Multiple (C4h)
.......................................................
132
12.14 Read Long (22h/23h)
......................................................
130
12.13 Read DMA Queued (C7h)
..................................................
128
12.12 Read DMA (C8h/C9h)
......................................................
127
12.11 Read Buffer (E4h)
.........................................................
126
12.10 NOP (00h)
...............................................................
125
12.9 Initialize Device Parameters (91h)
............................................
124
12.8 Idle Immediate (E1h/95h)
....................................................
122
12.7 Idle (E3h/97h)
..............................................................
115
12.6 Identify Device (ECh)
.......................................................
114
12.5 Format Unit (F7h)
..........................................................
112
12.4 Format Track (50h)
.........................................................
111
12.3 Flush Cache (E7h)
.........................................................
Deskstar 40GV & 75GXP hard disk drive specifications
vi

199
Index
........................................................................
197
14.2 SET FEATURES Command Support Coverage
.................................
195
14.1 Commands Support Coverage
...............................................
195
14.0 Appendix
.................................................................
193
13.0 Timings
..................................................................
191
12.40 Write Sectors (30h/31h)
....................................................
189
12.39 Write Multiple (C5h)
.......................................................
187
12.38
Write Long (32h/33h)
......................................................
185
12.37 Write DMA Queued (CCh)
..................................................
183
12.36 Write DMA (CAh/CBh)
.....................................................
182
12.35 Write Buffer (E8h)
.........................................................
181
12.34 Standby Immediate (E0h/94h)
...............................................
179
12.33 Standby (E2h/96h)
........................................................
Deskstar 40GV & 75GXP hard disk drive specifications
vii

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Figures
46
Figure 48. Operating and nonoperating conditions
....................................
45
Figure 47. Jumper settings for Disabling Auto Spin
...................................
44
Figure 46. Jumper positions for capacity clip to 2GB/32GB with 16 default logical heads
....
43
Figure 45. Jumper positions for 15 logical head default
...............................
42
Figure 44. Jumperpositions for normal use
..........................................
41
Figure 43. Jumper pin assignment
.................................................
40
Figure 42. I/O address map
.......................................................
39
Figure 41. Ultra DMA cycle timings (Host Terminating Write)
...........................
39
Figure 40. Ultra DMA cycle timing chart (Host Terminating Write)
.......................
38
Figure 39. Ultra DMA cycle timings (Device terminating Write)
.........................
38
Figure 38. Ultra DMA cycle timing chart (Device Terminating Write)
.....................
37
Figure 37. Ultra DMA cycle timings (Device Pausing Write)
............................
37
Figure 36. Ultra DMA cycle timing chart (Device Pausing Write)
........................
36
Figure 35. Ultra DMA cycle timings (Initiating Write)
..................................
36
Figure 34. Ultra DMA cycle timing chart (Initiating Write)
..............................
35
Figure 33. Ultra DMA cycle timings (Device Terminating Read)
.........................
35
Figure 32. Ultra DMA cycle timing chart (Device terminating Read)
.....................
34
Figure 31. Ultra DMA cycle timings (Host terminating Read)
...........................
34
Figure 30. Ultra DMA cycle timing chart (Host terminating Read)
.......................
33
Figure 29. Ultra DMA cycle timings (Host pausing Read)
..............................
33
Figure 28. Ultra DMA cycle timing chart (Host pausing Read)
..........................
32
Figure 27. Ultra DMA cycle timings (Initiating Read)
..................................
32
Figure 26. Ultra DMA cycle timing chart (Initiating Read)
..............................
31
Figure 25. Multiword DMA cycle timings
.............................................
31
Figure 24. Multiword DMA cycle timing chart
.........................................
29
Figure 23. PIO cycle timings
.......................................................
29
Figure 22. PIO cycle time chart
....................................................
28
Figure 21. System reset timing
....................................................
28
Figure 20. System reset timing chart
...............................................
24
Figure 19. Signal special definitions for Ultra DMA
....................................
24
Figure 18. Table of signals
........................................................
23
Figure 17. Power connector pin assignments
........................................
19
Figure 16. PList physical format
....................................................
17
Figure 15. Mode transition times
...................................................
16
Figure 14. Random Access Performance
............................................
16
Figure 13. Simple Sequential Access performance
...................................
15
Figure 12. Data transfer speed
....................................................
14
Figure 11. Drive ready time
.......................................................
14
Figure 10. Latency Time
..........................................................
14
Figure 9. Single Track Seek Time
..................................................
14
Figure 8. Cylinder Skew
..........................................................
13
Figure 7. Head switch time
........................................................
13
Figure 6. Full stroke seek time
.....................................................
12
Figure 5. Mechanical positioning performance
.......................................
12
Figure 4. Command overhead
....................................................
11
Figure 3. Cylinder allocation
.......................................................
10
Figure 2. Mechanical positioning performance
.......................................
9
Figure 1. Default logical drive parameters
.............................................
Deskstar 40GV & 75GXP hard disk drive specifications
ix

120
Figure 92. Identify Device Information (5 of 6)
......................................
119
Figure 92. Identify Device Information (4 of 6)
......................................
118
Figure 92. Identify Device Information (3 of 6)
......................................
117
Figure 92. Identify Device Information (2 of 6)
......................................
116
Figure 92. Identify Device Information (1 of 6)
......................................
115
Figure 91. Identify Device Command (ECh)
........................................
114
Figure 90. Format Unit Command (F7h)
...........................................
112
Figure 89. Format Track Command (50h)
..........................................
111
Figure 88. Flush Cache Command (E7h)
...........................................
110
Figure 87. Execute Device Diagnostic Command (90h)
..............................
109
Figure 86. Check Power Mode Command (E5h/98h)
.................................
107
Figure 85. Command set (Subcommand)
..........................................
106
Figure 84. Command set (2 of 2)
..................................................
105
Figure 84. Command set
(1 of 2)
..................................................
95
Figure 83. Device address map before and after Set Feature
..........................
91
Figure 82. Seek overlap
..........................................................
88
Figure 81. Command table for device lock operation (part 2 of 2)
......................
87
Figure 81. Command table for device lock operation (part 1 of 2)
.......................
86
Figure 80. Password Lost
.........................................................
85
Figure 79. Usual Operation
........................................................
84
Figure 78. Initial Setting
...........................................................
81
Figure 77. Power conditions
.......................................................
77
Figure 76. Reset error register values
...............................................
76
Figure 75. Diagnostic Codes
......................................................
76
Figure 74. Default Register Values
.................................................
75
Figure 73. Reset Response Table
..................................................
74
Figure 72. Status Register
........................................................
72
Figure 71. Error Register
..........................................................
72
Figure 70. Device/Head Register
...................................................
71
Figure 69. Drive Address Register
..................................................
71
Figure 68. Device Control Register
.................................................
70
Figure 67. Alternate Status Register
................................................
69
Figure 66. Register Set
...........................................................
61
Figure 65. Sound power levels
.....................................................
60
Figure 64. Rotational Shock
......................................................
60
Figure 63. Sinusoidal shock wave
..................................................
59
Figure 62. Random vibration PSD profile break points (nonoperating)
...................
58
Figure 61. Random vibration PSD profile break points (operating)
......................
57
Figure 60. Connector locations
....................................................
56
Figure 59. Mounting hole locations
.................................................
55
Figure 58. Physical Dimensions
....................................................
54
Figure 57. Outline of the DTLA-3xxxxx
..............................................
52
Figure 56. Energy consumption efficiency
...........................................
51
Figure 55. Typical Current Form of 12V at Start Up of DTLA-307060/307075
............
51
Figure 54. Typical Current Form of 12V at Start Up of DTLA-307015/307020/307030/
307045
.....................................................................
50
Figure 53. Typical Current Form of 12V at Start Up of DTLA-305010/305020/305030/
305040
.....................................................................
50
Figure 52. Power supply generated ripple at drive power connector
.....................
49
Figure 51. Power supply current (2 of 2)
............................................
48
Figure 51. Power supply current (1 0f 2)
............................................
48
Figure 50. Input voltage
...........................................................
47
Figure 49. Limits of temperature and humidity
.......................................
Deskstar 40GV & 75GXP hard disk drive specifications
x

187
Figure 144. Write Long Command (32h/33h)
.......................................
185
Figure 143. Write DMA Queued Command (CCh)
...................................
183
Figure 142. Write DMA Command (CAh/CBh)
......................................
182
Figure 141. Write Buffer Command (E8h)
..........................................
181
Figure 140. Standby Immediate Command (E0h/94h)
................................
179
Figure 139. Standby Command (E2h/96h)
..........................................
178
Figure 138. S.M.A.R.T. Error Codes
...............................................
177
Figure 137. Self-test log data structure
.............................................
176
Figure 136. Error data structure
...................................................
175
Figure 135. Command data structure
..............................................
175
Figure 134. Error log data structure
...............................................
174
Figure 133. SMART error log sector
...............................................
173
Figure 132. Individual Threshold Data Structure
.....................................
173
Figure 131. Device Attribute Thresholds Data Structure
..............................
170
Figure 130. Individual Attribute Data Structure
......................................
169
Figure 129. Device Attributes Data Structure
.......................................
167
Figure 128. Log sector addresses
.................................................
165
Figure 127. S.M.A.R.T. Function Set Command (B0h)
...............................
164
Figure 126. Sleep Command (E6h/99h)
............................................
163
Figure 125. Set Multiple Command (C6h)
..........................................
162
Figure 124. Set Max Freeze Lock (F9h)
............................................
161
Figure 123. Set Max Unlock (F9h)
.................................................
160
Figure 122. Set Max Lock
........................................................
159
Figure 121. Set Max Set Password data contents
...................................
159
Figure 120. Set Max Set Password
................................................
157
Figure 119. Set Max Address (F9h)
...............................................
154
Figure 118. Set Features Command (EFh)
.........................................
153
Figure 117. Service Command (A2h)
..............................................
152
Figure 116. Seek Command (7xh)
.................................................
151
Figure 115. Security Unlock Information
............................................
150
Figure 114. Security Unlock Command (F2h)
.......................................
149
Figure 113. Security Set Password Information
.....................................
148
Figure 112. Security Set Password Command (F1h)
.................................
147
Figure 111. Security Freeze Lock Command (F5h)
..................................
146
Figure 110. Erase Unit Information
................................................
145
Figure 109. Security Erase Unit Command (F4h)
....................................
144
Figure 108. Security Erase Prepare Command (F3h)
................................
142
Figure 107. Password Information for Security Disable Password command
............
142
Figure 106. Security Disable Password Command (F6h)
.............................
141
Figure 105. Recalibrate Command (1xh)
...........................................
139
Figure 104. Read Verify Sectors Command (40h/41h)
...............................
137
Figure 103. Read Sectors Command (20h/21h)
.....................................
136
Figure 102. Read Native Max LBA/CYL (F8h)
.......................................
134
Figure 101. Read Multiple Command (C4h)
.........................................
132
Figure 100. Read Long Command (22h/23h)
.......................................
130
Figure 99. Read DMA Queued Command (C7h)
....................................
128
Figure 98. Read DMA Command (C8h/C9h)
........................................
127
Figure 97. Read Buffer Command (E4h)
...........................................
126
Figure 96. NOP Command (00h)
..................................................
125
Figure 95. Initialize Device Parameters Command (91h)
.............................
124
Figure 94. Idle Immediate Command (E1h/95h)
.....................................
122
Figure 93. Idle Command (E3h/97h)
...............................................
121
Figure 92. Identify Device Information (6 of 6)
......................................
Deskstar 40GV & 75GXP hard disk drive specifications
xi

197
Figure 149. SET FEATURES command coverage
...................................
196
Figure 148. Command coverage (2 of 2)
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195
Figure 148. Command coverage (1 of 2)
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193
Figure 147. Time-out values
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191
Figure 146. Write Sectors Command (30h/31h)
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189
Figure 145. Write Multiple Command (C5h)
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1.0 General
This document describes the specifications of the following IBM 3.5-inch ATA interface hard disk drives:
ŸDTLA-305010 (10.2 GB) (5400 RPM)
ŸDTLA-305020 (20.5 GB) (5400 RPM)
ŸDTLA-305030 (30.7 GB) (5400 RPM)
ŸDTLA-305040 (41.1 GB) (5400 RPM)
ŸDTLA-307015 (15.3 GB) (7200 RPM)
ŸDTLA-307020 (20.5 GB) (7200 RPM)
ŸDTLA-307030 (30.7 GB) (7200 RPM)
ŸDTLA-307045 (46.1 GB) (7200 RPM)
ŸDTLA-307060 (61.4 GB) (7200 RPM)
ŸDTLA-307075 (76.8 GB) (7200 RPM)
Note:The specifications in this document are subject to change without notice.
1.1Glossary
ESD Electrostatic Discharge
Kbpi 1,000 bits per inch
Ktpi 1,000 tracks per inch
Mbps 1,000,000 bits per second
GB 1,000,000,000 bytes
MB 1,000,000 bytes
KB 1,000 bytes unless otherwise specified
32KB 32 x 1024 bytes
64KB 64 x 1024 bytes
S.M.A.R.T. Self-Monitoring Analysis and Reporting Technology
DFT Drive Fitness Test
ADM Automatic Drive Maintenance
Deskstar 40GV & 75GXP hard disk drive specifications
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1.2General caution
The drive can be damaged by shock or ESD (Electrostatic Discharge). Any damage sustained by the
drive after removal from the shipping package and opening the ESD protective bag are the responsibility
of the user.
1.3References
ŸATA/ATAPI-5(T13/1321DRevision 2)
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2.0 General features
ŸData capacities of 10.2 GB - 76.8 GB
ŸSpindle speeds of 5400 RPM (DTLA-305xxx)and 7200 RPM (DTLA-307xxx)
ŸEnhanced IDE (Ultra ATA100)interface
ŸSector format of 512 bytes/sector
ŸClosed-loop actuator servo
ŸAutomatic Actuator lock
ŸInterleave factor 1:1
ŸSeek time of 8.5ms in Read Operation including Command Overhead (DTLA-307xxx)
ŸSeek time of 9.5ms in Read Operation including Command Overhead (DTLA-305xxx)
ŸSector Buffer 512 KB (DTLA-305xxx)or 2048 KB (DTLA-307xxx)
Upper 132 KB is used for firmware
ŸRing buffer implementation
ŸWrite Cache
ŸQueued feature support
ŸAdvanced ECC On The Fly (EOF)
ŸAutomatic Error Recovery procedures for read and write commands
ŸSelf Diagnostics on Power on and resident diagnostics
ŸPIO Data Transfer Mode 4 (16.6 MB/sec)
ŸDMA Data Transfer
- Multiword mode Mode 2 (16.6 MB/sec)
- Ultra DMA Mode 4 (66.6 MB/sec)
- Ultra DMA Mode 5 (100 MB/sec)
ŸCHS and LBA mode
ŸTransparent Defect Management with ADR (Automatic Defect Reallocation)
ŸPower Saving modes
ŸS.M.A.R.T. (Self Monitoring and Analysis Reporting Technology)
ŸSecurity function support
ŸDefault Logical Head Number (16 or 15) selectable with jumper
ŸAddress Offset Feature for DFT implementation
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Part 1. Functional specification
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3.0 Fixed disk subsystem description
3.1Control 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:
ŸControls and interprets all interface signals between the host controller and the drive.
ŸControls read write accessing of the disk media, including defect management and error recovery.
ŸControls starting, stopping, and monitoring of the spindle.
ŸConducts a power-up sequence and calibrates the servo.
ŸAnalyzes servo signals to provide closed loop control. These include position error signal and esti-
mated velocity.
ŸMonitors the actuator position and determines the target track for a seek operation.
ŸControls the voice coil motor driver to align the actuator in a desired position.
ŸConstantly monitors error conditions of the servo and takes corresponding action if an error occurs.
ŸMonitors various timers such as head settle and servo failure.
ŸPerforms self-checkout (diagnostics).
3.2Head 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.
3.3Actuator
The read/write heads are mounted in the actuator. The actuator is a swing-arm assembly driven by a
voice coil motor. A closed-loop positioning servo controls the movement of the actuator. An embedded
servo pattern supplies feedback to the positioning servo to keep the read/write heads centered over the
desired track.
The actuator assembly is balanced to allow vertical or horizontal mounting without adjustment.
When the drive is powered off, the actuator automatically moves the head to the actuator ramp outside of
the disk where it is parked.
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