Hitachi IC25N040ATCS04-0 Specifications - Page 183

Device Attributes Data Structure

Get Hitachi IC25N040ATCS04-0 - Travelstar 40GN 40GB UDMA/100 4200RPM 2MB 2.5inch IDE Hard Drive PDF manuals and user guides
UPC - 683728198664
View all Hitachi IC25N040ATCS04-0 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 183 highlights

13.32.2 Device Attributes Data Structure The following defines the 512 bytes that make up the Attribute Value information. This data structure is accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Values subcommand. All multibyte fields shown in these data structures follow the ATA/ATAPI-5 specification for byte ordering, namely, that the least significant byte occupies the lowest numbered byte address location in the field. Description Byte Offset Data Structure Revision Number 2 00h 1st Device Attribute ↕ 12 02h ↕ ↕ 30th Device Attribute 12 15Eh Off-line data collection status 1 16Ah Self-test execution status 1 16Bh Total time in seconds to complete off-line data collection activity 2 16Ch Current segment pointer 1 16Eh Off-line data collection capability 1 16Fh S.M.A.R.T. capability 2 170h S.M.A.R.T. device error logging capability 1 172h Self-test failure check point 1 173h Short self-test completion time in minutes 1 174h Extended self-test completion time in minutes 1 175h Reserved 12 176h Vendor specific 125 182h Data structure checksum 1 1FFh 512 (*1) - See following definitions (*2) - This value varies due to actual operating condition. (*3) - Filled with 00h. Format binary (*1) ↕ (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) Value 0010h (*2) ↕ (*2) (*2) (*2) (*2) (*2) 1Bh 0003h 01h (*2) (*2) (*2) (*3) (*3) (*2) Figure 123. Device Attribute Data Structure 13.32.2.1 Data Structure Revision Number The Data Structure Revision Number identifies which version of this data structure is implemented by the device. This revision number will be set to 0005h. This revision number identifies both the Attribute Value and Attribute Threshold Data structures. Hitachi Travelstar 60GH & 40GN hard disk drive specifications 170

  • 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
13.32.2 Device Attributes Data Structure
The following defines the 512 bytes that make up the Attribute Value information. This data structure is
accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Values subcommand. All multibyte
fields shown in these data structures follow the ATA/ATAPI-5 specification for byte ordering, namely, that
the least significant byte occupies the lowest numbered byte address location in the field.
512
(*2)
(*1)
1FFh
1
Data structure checksum
(*3)
182h
125
Vendor specific
(*3)
176h
12
Reserved
(*2)
(*1)
175h
1
Extended self-test completion time in minutes
(*2)
(*1)
174h
1
Short self-test completion time in minutes
(*2)
(*1)
173h
1
Self-test failure check point
01h
(*1)
172h
1
S.M.A.R.T. device error logging capability
0003h
(*1)
170h
2
S.M.A.R.T. capability
1Bh
(*1)
16Fh
1
Off-line data collection capability
(*2)
(*1)
16Eh
1
Current segment pointer
(*2)
(*1)
16Ch
2
Total time in seconds to complete off-line
data collection activity
(*2)
(*1)
16Bh
1
Self-test execution status
(*2)
(*1)
16Ah
1
Off-line data collection status
(*2)
(*1)
15Eh
12
30th Device Attribute
↕
↕
↕
↕
↕
(*2)
(*1)
02h
12
1st Device Attribute
0010h
binary
00h
2
Data Structure Revision Number
Value
Format
Offset
Byte
Description
(*1)
–
See following definitions
(*2)
–
This value varies due to actual operating condition.
(*3) - Filled with 00h.
Figure 123. Device Attribute Data Structure
13.32.2.1 Data Structure Revision Number
The Data Structure Revision Number identifies which version of this data structure is implemented by the
device. This revision number will be set to 0005h. This revision number identifies both the Attribute Value
and Attribute Threshold Data structures.
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
170