IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Figure 24. Power Consumption Efficiency; Power Consumption Efficiency

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6.2.1 Power consumption efficiency

0.1300.1080.0870.0650.0540.0430.0330.0220.019

Power

Consumption

Efficiency

(Watts/GB)

5 GB6 GB7.5 GB10 GB12 GB15 GB20 GB30 GB48 GB

Capacity

Figure 24. Power consumption efficiency

Note: Power consumption efficiency is calculated as Power Consumption of Low Power Idle Watt/

Capacity (GB).

Travelstar 48GH, 30GN & 15GN hard disk drive specifications

Main Page

Default Chapter1
- Hard Disk Drive Specifications1
- Table of Contents5
Figures11
1 Introduction15
- Abbreviations15
- References17
- General Caution17
- Drive Handling Precautions18
- Figure 1. Handling Precaution18
- Figure 2. Handling Precaution18
2 General Features19
Part 1. Functional Specification21
3 Fixed Disk Subsystem Description23
- Control Electronics23
- Head Disk Assembly Data23
4 Fixed Disk Characteristics25
- Default Logical Drive Parameters25
- Formatted Capacity25
- Figure 3. Default Logical Drive Parameters25
- Figure 4. Formatted Capacity by Model Number - (1 of 2)25
- Data Sheet26
- Figure 4. Formatted Capacity by Model Number - (2 of 2)26
- Figure 5. Data Sheet26
- Cylinder Allocation27
- Figure 6. Cylinder Allocation - 48-GB Model (IC25T048ATDA05)27
- Figure 7. Cylinder Allocation - 30-GB Model (IC25N030ATDA04)27
- Figure 8. Cylinder Allocation - 20-GB Model (IC25N020ATDA04)28
- Figure 9. Cylinder Allocation - 15-GB, 7.5-GB Models (IC25N015ATDA04, IC25N007ATDA04)28
- Figure 10. Cylinder Allocation - 12-GB, 10-GB, 6-GB, 5-GB Models29
- Performance Characteristics30
5 Data Integrity35
- Data Loss on Power off35
- Write Cache35
- Equipment Status35
- WRITE Safety36
- Data Buffer Test36
- Error Recovery36
- Automatic Reallocation36
- Ecc37
- Figure 19. Examples of Error Cases37
6 Specification39
- Environment39
- DC Power Requirements41
- Start up Current43
- Figure 25. Typical Current Wave Form at Start up of IC25N048ATDA04-043
- Figure 26. Typical Current Wave Form at Start up of IC25N030ATDA04-044
- Figure 27. Typical Current Wave Form at Start up of IC25N015ATDA04-044
- Reliability45
- Mechanical Specifications48
- Vibration and Shock51
- Identification Labels56
- Electromagnetic Compatibility56
  - CE Mark56
  - C-Tick Mark56
- Safety57
- Packaging57
7 Electrical Interface Specifications59
- Cabling59
- Interface Connector59
- Figure 37. Interface Connector Pin Assignments59
- Signal Definitions60
- Figure 38. Table of Signals60
- Figure 39. Special Signal Definitions for Ultra DMA61
- Signal Descriptions62
- Interface Logic Signal Levels65
- Reset Timings65
- Figure 40. System Reset Timings65
- PIO Timings66
- Figure 41. PIO Cycle Timings66
- Multiword DMA Timings67
- Figure 42. Multiword DMA Cycle Timings67
- Ultra DMA Timings68
  - Initiating Read DMA68
  - Figure 43. Ultra DMA Cycle Timing (Initiating Read)68
  - Host Pausing Read DMA69
  - Figure 44. Ultra DMA Cycle Timings (Host Pausing Read)69
  - Host Terminating Read DMA70
  - Figure 45. Ultra DMA Cycle Timing (Host Terminating Read)70
  - Device Terminating Read DMA71
  - Figure 46. Ultra DMA Cycle Timings (Device Terminating Read)71
  - Initiating Write DMA72
  - Figure 47. Ultra DMA Cycle Timings (Initiating Write)72
  - Device Pausing Write DMA73
  - Figure 48. Ultra DMA Cycle Timings (Device Pausing Write)73
  - Device Terminating Write DMA74
  - Figure 49. Ultra DMA Cycle Timings (Device Terminating Write)74
  - Host Terminating Write DMA75
  - Figure 50. Ultra DMA Cycle Timings (Host Terminating Write)75
- Drive Address Setting76
- Drive Default Address Setting76
- Figure 51. Drive Address Setting76
- Addressing of HDD Registers77
- Figure 52. I/O Address Map77
Part 2. Interface Specification79
8 General81
- Introduction81
- Terminology81
9 Deviations from Standard83
10 Registers85
- Figure 53. Register Set85
- Alternate Status Register86
- Command Register86
- Cylinder High Register86
- Cylinder Low Register86
- Figure 54. Alternate Status Register86
- Data Register87
- Device Control Register87
- Figure 55. Device Control Register87
- Device/Head Register88
- Figure 56. Device/Head Register88
- Error Register89
- Features Register89
- Sector Count Register89
- Figure 57. Error Register89
- Sector Number Register90
- Status Register90
- Figure 58. Status Register90
11 General Operation Descriptions91
- Reset Response91
- Diagnostic and Reset Considerations94
- Figure 62. Reset Error Register Values94
- Power-Off Considerations95
- Sector Addressing Mode96
  - Logical CHS Addressing Mode96
- Power Management Features97
- Advanced Power Management (ABLE-3) Feature99
- Function100
- Security Mode Feature Set101
- Protected Area Function108
- Address Offset Feature (Vendor Specific)111
- Seek Overlap113
- Figure 72. Seek Overlap113
- Write Cache Function114
- Delayed Write Function (Vendor Specific)114
  - Enable/Disable Delayed Write Command114
- Reassign Function115
  - Auto Reassign Function115
12 Command Protocol117
- Data in Commands117
- Data out Commands119
- Nondata Commands121
- DMA Data Transfer Commands122
13 Command Descriptions123
- Figure 73. Command Set (1 of 2)123
- Figure 73. Command Set (2 of 2)124
- Figure 74. Command Set (Subcommand)125
- Check Power Mode (E5H/98H)127
- Figure 75. Check Power Mode Command (E5H/98H)127
- Device Configuration Overlay (B1H)128
  - DEVICE CONFIGURATION RESTORE (Subcommand C0H)128
  - Figure 76. Device Configuration Overlay (B1H)128
  - Figure 77. Device Configuration Overlay Features Register Values128
  - DEVICE CONFIGURATION FREEZE LOCK (Subcommand C1H)129
  - DEVICE CONFIGURATION IDENTIFY (Subcommand C2H)129
  - DEVICE CONFIGURATION SET (Subcommand C3H)129
  - Figure 78. Device Configuration Overlay Data Structure130
  - Figure 79. DCO Error Information Definition131
- Enable/Disable Delayed Write (Fah: Vendor Specific)132
- Figure 80. Enable/Disable Delayed Write Command (Fah)132
- Execute Device Diagnostic (90H)133
- Figure 81. Execute Device Diagnostic Command (90H)133
- Flush Cache (E7H)134
- Figure 82. Flush Cache Command (E7H)134
- Format Track (50H: Vendor Specific)135
- Figure 83. Format Track Command (50H)135
- Format Unit (F7H: Vendor Specific)137
- Figure 84. Format Unit Command (F7H)137
- Identify Device (Ech)139
- Figure 85. Identify Device Command (Ech)139
- Figure 86. Identify Device Information (1 of 7)140
- Figure 86. Identify Device Information (2 of 7)141
- Figure 86. Identify Device Information (3 of 7)142
- Figure 86. Identify Device Information (4 of 7)143
- Figure 86. Identify Device Information (5 of 7)144
- Figure 86. Identify Device Information (6 of 7)145
- Figure 86. Identify Device Information (7 of 7)146
- Figure 87. Number of Cylinders/Heads/Sectors by Model Number147
- Identify Device DMA (Eeh)148
- Figure 88. Identify Device DMA Command (Eeh)148
- Idle (E3H/97H)149
- Figure 89. Idle Command (E3H/97H)149
- Idle Immediate (E1H/95H)150
- Figure 90. Idle Immediate Command (E1H/95H)150
- Initialize Device Parameters (91H)151
- Figure 91. Initialize Device Parameters Command (91H)151
- Read Buffer (E4H)152
- Figure 92. Read Buffer Command (E4H)152
- Read DMA (C8H/C9H)153
- Figure 93. Read DMA Command (C8H/C9H)153
- Read Long (22H/23H)155
- Figure 94. Read Long Command (22H/23H)155
- Read Multiple (C4H)157
- Figure 95. Read Multiple Command (C4H)157
- Read Native Max ADDRESS (F8H)159
- Figure 96. Read Native Max ADDRESS (F8H)159
- Read Sectors (20H/21H)161
- Figure 97. Read Sectors Command (20H/21H)161
- Read Verify Sectors (40H/41H)163
- Figure 98. Read Verify Sectors Command (40H/41H)163
- Recalibrate (1Xh)165
- Figure 99. Recalibrate Command (1Xh)165
- Security Disable Password (F6H)166
- Figure 100. Security Disable Password Command (F6H)166
- Figure 101. Password Information for Security Disable Password Command166
- Security Erase Prepare (F3H)167
- Figure 102. Security Erase Prepare Command (F3H)167
- Security Erase Unit (F4H)168
- Figure 103. Security Erase Unit Command (F4H)168
- Figure 104. Erase Unit Information168
- Security Freeze Lock (F5H)170
- Figure 105. Security Freeze Lock Command (F5H)170
- Security Set Password (F1H)171
- Figure 106. Security Set Password Command (F1H)171
- Figure 107. Security Set Password Information172
- Security Unlock (F2H)173
- Figure 108. Security Unlock Command (F2H)173
- Figure 109. Security Unlock Information174
- Seek (7Xh)175
- Figure 110. Seek Command (7Xh)175
- Sense Condition (F0H: Vendor Specific)176
- Figure 111. Sense Condition Command (F0H)176
- Set Features (Efh)177
- Figure 112. Set Features Command (Efh)177
- Set Max ADDRESS (F9H)179
- Figure 113. Set Max ADDRESS (F9H)179
- Set Multiple (C6H)181
- Figure 114. Set Multiple Command (C6H)181
- Sleep (E6H/99H)182
- Figure 115. Sleep Command (E6H/99H)182
- Function Set (B0H)183
  - Figure 116. S.M.A.R.T. Function Set Command (B0H)183
  - Function Subcommands184
  - Figure 117. Log Sector Addresses185
  - Device Attributes Data Structure188
  - Figure 118. Device Attribute Data Structure188
  - Figure 119. Individual Attribute Data Structure189
  - Figure 120. Status Flag Definitions190
  - Device Attribute Thresholds Data Structure193
  - Figure 121. Device Attribute Thresholds Data Structure193
  - Figure 122. Individual Threshold Data Structure194
  - Error Log Sector195
  - Figure 123. S.M.A.R.T. Error Log Sector195
  - Figure 124. Error Log Data Structure196
  - Figure 125. Command Data Structure196
  - Figure 126. Error Data Structure197
  - Figure 127. Self-Test Log Data Structure198
  - Self-Test Log Data Structure198
  - Error Reporting199
  - Figure 128. S.M.A.R.T. Error Codes199
- Standby (E2H/96H)200
- Figure 129. Standby Command (E2H/96H)200
- Standby Immediate (E0H/94H)201
- Figure 130. Standby Immediate Command (E0H/94H)201
- Write Buffer (E8H)202
- Figure 131. Write Buffer Command (E8H)202
- Write DMA (Cah/Cbh)203
- Figure 132. Write DMA Command (Cah/Cbh)203
- Write Long (32H/33H)205
- Figure 133. Write Long Command (32H/33H)205
- Write Multiple (C5H)207
- Figure 134. Write Multiple Command (C5H)207
- Write Sectors (30H/31H)209
- Figure 135. Write Sectors Command (30H/31H)209
- Write Verify (3Ch: Vendor Specific)210
14 Time-Out Values211
- Figure 136. Time-Out Values211
15 Appendix213
- Commands Support Coverage213
- Figure 137. Command Coverage (1 of 2)213
- Figure 137. Command Coverage (2 of 2)214
- SET FEATURES Command Support Coverage215
- Figure 138. SET FEATURES Command Coverage215
Index217

IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Figure 24. Power Consumption Efficiency; Power Consumption Efficiency

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