Hitachi HDS723020BLA642 Specifications page 4

Vibration and shock ........................................................................................................................ 39
6.6
6.6.1 Operating vibration ................................................................................................................. 39
6.6.2 Non operating vibration .......................................................................................................... 39
6.6.3 Operating shock ....................................................................................................................... 40
6.6.4 Non operating shock ................................................................................................................ 40
6.6.5 Nonoperating Rotational shock .............................................................................................. 41
Acoustics .......................................................................................................................................... 42
6.7
Identification labels ........................................................................................................................ 43
6.8
Safety ............................................................................................................................................... 44
6.9
6.9.1 UL and CSA standard conformity .......................................................................................... 44
6.9.2 German Safety Mark .............................................................................................................. 44
6.9.3 Flammability ........................................................................................................................... 44
6.9.4 Safe handling ........................................................................................................................... 44
6.9.5 Substance restriction requirements ....................................................................................... 44
6.9.6 Secondary circuit protection ................................................................................................... 44
Electromagnetic compatibility ....................................................................................................... 45
6.10
6.10.1 CE Mark ................................................................................................................................... 45
6.10.2 C-Tick Mark ............................................................................................................................. 45
6.10.3 BSMI Mark .............................................................................................................................. 45
6.10.4 KC Mark................................................................................................................................... 45
Part 2. Interface Specification ......................................................................................................................... 46
7 General ................................................................................................................................................................47
Introduction .................................................................................................................................... 47
7.1
Terminology ..................................................................................................................................... 47
7.2
Deviations From Standard ................................................................................................................... 48
7.3
8 Registers .............................................................................................................................................................49
Alternate Status Register ..................................................................................................................... 49
8.1
Command register............................................................................................................................... 49
8.2
Cylinder High Register........................................................................................................................ 49
8.3
Cylinder Low Register ........................................................................................................................ 50
8.4
Device Control Register ...................................................................................................................... 50
8.5
Drive Address Register........................................................................................................................ 51
8.6
Device/Head Register ......................................................................................................................... 52
8.7
Error Register ..................................................................................................................................... 53
8.8
Features Register ................................................................................................................................ 54
8.9
Sector Count Register ......................................................................................................................... 54
8.10
Sector Number Register ...................................................................................................................... 54
8.11
Status Register .................................................................................................................................... 55
8.12
9 General Operation Descriptions ..........................................................................................................................56
Reset Response ................................................................................................................................... 56
9.1
9.1.1 Register Initialization ............................................................................................................. 57
Diagnostic and Reset considerations ..................................................................................................... 57
9.2
Sector Addressing Mode...................................................................................................................... 58
9.3
9.3.1 Logical CHS Addressing Mode ............................................................................................... 58
9.3.2 LBA Addressing Mode ............................................................................................................. 58
Power Management Feature ................................................................................................................ 59
9.4
9.4.1 Power Mode .............................................................................................................................. 59
9.4.2 Power Management Commands............................................................................................. 59
9.4.3 Standby timer .......................................................................................................................... 59
9.4.4 Interface Capability for Power Modes ................................................................................... 60
SMART Function ............................................................................................................................... 61
9.5
9.5.1 Attributes ................................................................................................................................. 61
9.5.2 Attribute values ....................................................................................................................... 61
9.5.3 Attribute thresholds ................................................................................................................ 61
Hitachi hard disk drive specifications
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