User manual

- Hitachi hard disk drive specifications –
3
Table of contents
1 General ................................................................................................................................................................10
1.1 Introduction .................................................................................................................................... 10
1.2 Glossary ........................................................................................................................................... 11
1.3 General caution ............................................................................................................................... 11
1.4 References ....................................................................................................................................... 11
2 General features .................................................................................................................................................12
Part 1. Functional specification ....................................................................................................................... 13
3 Fixed disk subsystem description .......................................................................................................................14
3.1 Control Electronics ......................................................................................................................... 14
3.2 Head disk assembly ........................................................................................................................ 14
3.3 Actuator ........................................................................................................................................... 14
4 Drive characteristics ............................................................................................................................................15
4.1 Default logical drive parameters ................................................................................................... 15
4.2 Data sheet ....................................................................................................................................... 17
4.3 World Wide Name Assignment ...................................................................................................... 17
4.4 Drive organization .......................................................................................................................... 18
4.5 Performance characteristics .......................................................................................................... 19
5 Defect flagging strategy ......................................................................................................................................23
6 Specification ........................................................................................................................................................24
6.1 Electrical interface ......................................................................................................................... 24
6.2 Environment ................................................................................................................................... 28
6.3 DC power requirements ................................................................................................................. 30
6.4 Reliability ........................................................................................................................................ 32
6.5 Mechanical specifications............................................................................................................... 34
6.6 Vibration and shock ........................................................................................................................ 40
6.7 Acoustics .......................................................................................................................................... 43
6.8 Identification labels ........................................................................................................................ 43
6.9 Safety ............................................................................................................................................... 44
6.10 Electromagnetic compatibility ....................................................................................................... 45
Part 2. Interface Specification ......................................................................................................................... 46
7 General ................................................................................................................................................................47
7.1 Introduction .................................................................................................................................... 47
7.2 Terminology ..................................................................................................................................... 47
7.3 Deviations From Standard............................................................................................................. 47
8 Registers .............................................................................................................................................................48
8.1 Alternate Status Register .............................................................................................................. 48
8.2 Command register .......................................................................................................................... 48
8.3 Cylinder High Register .................................................................................................................. 48
8.4 Cylinder Low Register .................................................................................................................... 49
8.5 Data Register .................................................................................................................................. 49
8.6 Device Control Register.................................................................................................................. 49
8.7 Drive Address Register ................................................................................................................... 50
8.8 Device/Head Register ..................................................................................................................... 50
8.9 Error Register ................................................................................................................................. 51
8.10 Features Register ........................................................................................................................... 52
8.11 Sector Count Register .................................................................................................................... 52
8.12 Sector Number Register ................................................................................................................. 52
8.13 Status Register ............................................................................................................................... 53
9 General Operation Descriptions ..........................................................................................................................54
9.1 Reset Response ............................................................................................................................... 54
9.2 Diagnostic and Reset considerations............................................................................................. 55
9.3 Sector Addressing Mode ................................................................................................................. 56