Hitachi 7K100 Hard Drive Specifications - Page 5

Table of Contents - specifications

Page 5 highlights

Table of Contents 1.0 General...1 1.1 Introduction 1 1.2 References 1 1.3 Abbreviations 1 1.4 Caution...3 1.5 Drive handling precautions 3 2.0 Outline of the drive 5 3.0 Fixed-disk subsystem description 9 3.1 Control electronics 9 3.2 Head disk assembly data 9 4.0 Drive characteristics 11 4.1 Formatted capacity 11 4.2 Data sheet 11 4.3 Cylinder allocation 12 4.4 Performance characteristics 13 4.4.1 Command overhead 13 4.4.2 Mechanical positioning 14 4.4.3 Operating modes 16 5.0 Data integrity...17 5.1 Data loss at power off 17 5.2 Write Cache 17 5.3 Equipment status 17 5.4 WRITE safety 18 5.5 Data buffer test 18 5.6 Error recovery 18 5.7 Automatic reallocation 18 5.7.1 Nonrecovered write errors 18 5.7.2 Nonrecoverable read error 18 5.7.3 Recovered read errors 18 5.8 ECC...19 6.0 Specification ...21 6.1 Environment 21 6.1.1 Temperature and humidity 21 6.1.2 Radiation noise 23 6.1.3 Conductive noise 23 6.1.4 Magnetic fields 23 6.2 DC power requirements 24 6.2.1 Power consumption efficiency 24 6.3 Reliability 25 6.3.1 Data Reliability 25 6.3.2 Failure prediction (S.M.A.R.T 25 6.3.3 Cable noise interference 25

  • 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
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225

Table of Contents
1.0
General
...............................................................................................................
1
1.1
Introduction
.............................................................................................
1
1.2
References
...............................................................................................
1
1.3
Abbreviations
..........................................................................................
1
1.4
Caution
....................................................................................................
3
1.5
Drive handling precautions
.....................................................................
3
2.0
Outline of the drive
...........................................................................................
5
3.0
Fixed-disk subsystem description
....................................................................
9
3.1
Control electronics
..................................................................................
9
3.2
Head disk assembly data
.........................................................................
9
4.0
Drive characteristics
.........................................................................................
11
4.1
Formatted capacity
..................................................................................
11
4.2
Data sheet
................................................................................................
11
4.3
Cylinder allocation
..................................................................................
12
4.4
Performance characteristics
....................................................................
13
4.4.1
Command overhead
.......................................................................
13
4.4.2
Mechanical positioning
..................................................................
14
4.4.3
Operating modes
............................................................................
16
5.0
Data integrity
.....................................................................................................
17
5.1
Data loss at power off
.............................................................................
17
5.2
Write Cache
............................................................................................
17
5.3
Equipment status
.....................................................................................
17
5.4
WRITE safety
.........................................................................................
18
5.5
Data buffer test
........................................................................................
18
5.6
Error recovery
.........................................................................................
18
5.7
Automatic reallocation
............................................................................
18
5.7.1
Nonrecovered write errors
.............................................................
18
5.7.2
Nonrecoverable read error
.............................................................
18
5.7.3
Recovered read errors
....................................................................
18
5.8
ECC
.........................................................................................................
19
6.0
Specification
......................................................................................................
21
6.1
Environment
............................................................................................
21
6.1.1
Temperature and humidity
.............................................................
21
6.1.2
Radiation noise
..............................................................................
23
6.1.3
Conductive noise
............................................................................
23
6.1.4
Magnetic fields
..............................................................................
23
6.2
DC power requirements
..........................................................................
24
6.2.1
Power consumption efficiency
.......................................................
24
6.3
Reliability
................................................................................................
25
6.3.1
Data Reliability
..............................................................................
25
6.3.2
Failure prediction (S.M.A.R.T.)
....................................................
25
6.3.3
Cable noise interference
.................................................................
25