Deskstar 7K400 Hard Disk Drive Specification
Table of Contents
1.0
General
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1
1.1
Introduction
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1
1.2
References
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1
1.3
Abbreviations
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1
1.4
Caution
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3
2.0
General features of the drive
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5
3.0
Fixed-disk subsystem description
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9
3.1
Control electronics
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9
3.2
Head disk assembly
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9
3.3
Actuator
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9
4.0
Drive characteristics
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11
4.1
Default logical drive parameters
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11
4.2
Data sheet
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12
4.3
World Wide Name Assignment
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12
4.4
Drive organization
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12
4.4.1 Drive format
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12
4.4.2 Cylinder allocation
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13
4.5
Performance characteristics
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14
4.5.1 Command overhead
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14
4.5.2 Mechanical positioning
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15
4.5.3 Drive ready time
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16
4.5.4 Data transfer speed
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17
4.5.5 Throughput
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18
4.5.6 Operating modes
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19
5.0
Defect flagging strategy
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21
6.0
Specification
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23
6.1
Electrical Interface
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23
6.1.1 Connector location
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23
6.1.2 DC power connector
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24
6.1.3 AT signal connector
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24
6.2
Signal definitions (PATA model)
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25
6.3
Signal descriptions
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26
6.4
Interface logic signal levels (PATA model)
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29
6.4.1 Signal definition (SATA model)
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29
6.4.2 Out of band signaling (SATA model)
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30
6.5
Signal timings (PATA model)
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31
6.5.1 Reset timings
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31
6.6
PIO timings
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32
6.6.1 Write DRQ interval time
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32
6.6.2 Read DRQ interval time
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33
6.7
Multi word DMA timings
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34
6.8
Ultra DMA timings
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35
6.8.1 Initiating Read DMA
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35