Текст страницы
Table of contents
1
General ....................................................................................................................................................... 16
1.1
Introduction ..................................................................................................................................... 16
1.2
Glossary ........................................................................................................................................... 17
1.3
General caution ............................................................................................................................... 17
1.4
References ........................................................................................................................................ 17
2
General features ........................................................................................................................................ 18
Part 1. Functional specification ....................................................................................................................... 19
3
Fixed disk subsystem description ............................................................................................................. 20
3.1
Control Electronics ......................................................................................................................... 20
3.2
Head disk assembly ........................................................................................................................ 20
3.3
Actuator ........................................................................................................................................... 20
4
Drive characteristics .................................................................................................................................. 21
4.1
Default logical drive parameters ................................................................................................... 21
4.2
Data sheet ........................................................................................................................................ 22
4.3
Worldwide Name Assignment ........................................................................................................ 22
4.4
Drive organization .......................................................................................................................... 22
4.4.1
Drive Format ............................................................................................................................ 22
4.4.2
Cylinder allocation ................................................................................................................... 22
4.5
Performance characteristics ........................................................................................................... 23
4.5.1
Mechanical positioning ............................................................................................................ 23
4.5.2
Drive ready time ...................................................................................................................... 23
4.5.3
Operating modes ...................................................................................................................... 24
5
Defect flagging strategy ............................................................................................................................ 25
5.1
Shipped format ................................................................................................................................ 25
6
Specification ............................................................................................................................................... 26
6.1
Electrical interface .......................................................................................................................... 26
6.1.1
Connector location ................................................................................................................... 26
6.1.2
Signal definition ....................................................................................................................... 27
6.1.3
Out of band signaling .............................................................................................................. 28
6.2
Environment .................................................................................................................................... 29
6.2.1
Temperature and humidity ..................................................................................................... 29
6.2.2
Storage Requirements ............................................................................................................. 30
6.2.3
Corrosion test ........................................................................................................................... 30
6.2.4
Atmospheric condition ............................................................................................................. 30
6.3
DC power requirements .................................................................................................................. 31
6.3.1
Input voltage ............................................................................................................................ 31
6.3.2
Power supply current .............................................................................................................. 32
6.3.3
Power line noise limits ............................................................................................................ 33
6.3.4
Power Consumption Efficiency ............................................................................................... 33
6.4
Workload .......................................................................................................................................... 33
6.4.1
Workload .................................................................................................................................. 33
6.5
Reliability ........................................................................................................................................ 34
6.5.1
Annualized failure rate ........................................................................................................... 34
6.5.2
Data integrity ........................................................................................................................... 34
6.5.3
Cable noise interference .......................................................................................................... 34
6.5.4
Load/Unload ............................................................................................................................. 34
6.5.5
Start/stop cycles ....................................................................................................................... 34
6.5.6
Preventive maintenance .......................................................................................................... 34
6.5.7
Data reliability ......................................................................................................................... 34
6.5.8
Required Power-Off Sequence ................................................................................................ 34
6.6
Mechanical specifications ............................................................................................................... 35
3
Hard Disk Drive Specification