Hitachi IC25N080ATMR04-0 Specifications - Page 5

Table of Contents - specification

Page 5 highlights

Hitachi Global Storage Technologies Table of Contents 1.0 General...5 1.1 Introduction...5 1.2 References...5 1.3 Abbreviations...5 1.4 Caution...7 1.5 Drive handling precautions ...8 2.0 Outline of the drive ...9 3.0 Fixed-disk subsystem description 13 3.1 Control electronics ...13 3.2 Head disk assembly data...13 4.0 Drive characteristics ...15 4.1 Formatted capacity...15 4.2 Data sheet...15 4.3 Cylinder allocation...16 4.4 Performance characteristics 17 4.4.1 Command overhead ...17 4.4.2 Mechanical positioning 17 4.4.3 Operating modes ...19 5.0 Data integrity...21 5.1 Data loss at power off ...21 5.2 Write Cache ...21 5.3 Equipment status...21 5.4 WRITE safety ...22 5.5 Data buffer test...22 5.6 Error recovery ...22 5.7 Automatic reallocation...22 5.7.1 Nonrecovered write errors 22 5.7.2 Nonrecoverable read error 22 5.7.3 Recovered read errors 22 5.8 ECC...23 6.0 Specification ...25 6.1 Environment...25 6.1.1 Temperature and humidity 25 6.1.2 Radiation noise ...26 6.1.3 Conductive noise...27 6.1.4 Magnetic fields ...27 6.2 DC power requirements ...27 6.2.1 Power consumption efficiency 28 6.3 Reliability...28 6.3.1 Data Reliability ...28 6.3.2 Failure prediction (S.M.A.R.T 28 6.3.3 Cable noise interference 28

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214

Hitachi Global Storage Technologies
Table of Contents
1.0 General
........................................................................................................................................
5
1.1 Introduction
............................................................................................................................
5
1.2 References
..............................................................................................................................
5
1.3 Abbreviations
.........................................................................................................................
5
1.4 Caution
...................................................................................................................................
7
1.5 Drive handling precautions
....................................................................................................
8
2.0 Outline of the drive
....................................................................................................................
9
3.0 Fixed-disk subsystem description
.............................................................................................
13
3.1 Control electronics
.................................................................................................................
13
3.2 Head disk assembly data
........................................................................................................
13
4.0 Drive characteristics
..................................................................................................................
15
4.1 Formatted capacity
.................................................................................................................
15
4.2 Data sheet
...............................................................................................................................
15
4.3 Cylinder allocation
.................................................................................................................
16
4.4 Performance characteristics
...................................................................................................
17
4.4.1 Command overhead
......................................................................................................
17
4.4.2 Mechanical positioning
.................................................................................................
17
4.4.3 Operating modes
...........................................................................................................
19
5.0 Data integrity
..............................................................................................................................
21
5.1 Data loss at power off
............................................................................................................
21
5.2 Write Cache
...........................................................................................................................
21
5.3 Equipment status
....................................................................................................................
21
5.4 WRITE safety
........................................................................................................................
22
5.5 Data buffer test
.......................................................................................................................
22
5.6 Error recovery
........................................................................................................................
22
5.7 Automatic reallocation
...........................................................................................................
22
5.7.1 Nonrecovered write errors
............................................................................................
22
5.7.2 Nonrecoverable read error
............................................................................................
22
5.7.3 Recovered read errors
...................................................................................................
22
5.8 ECC
........................................................................................................................................
23
6.0 Specification
...............................................................................................................................
25
6.1 Environment
...........................................................................................................................
25
6.1.1 Temperature and humidity
............................................................................................
25
6.1.2 Radiation noise
.............................................................................................................
26
6.1.3 Conductive noise
...........................................................................................................
27
6.1.4 Magnetic fields
.............................................................................................................
27
6.2 DC power requirements
.........................................................................................................
27
6.2.1 Power consumption efficiency
......................................................................................
28
6.3 Reliability
...............................................................................................................................
28
6.3.1 Data Reliability
.............................................................................................................
28
6.3.2 Failure prediction (S.M.A.R.T.)
...................................................................................
28
6.3.3 Cable noise interference
................................................................................................
28