Device Attribute Data Structure - Hitachi HDS725050KLA360 Specifications

3.5 inch ultra ata/133 hard disk drive, 3.5 inch serial ata hard disk drive
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12.42.2 Device Attribute 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 are in byte ordering, that is, the least significant byte occupies the lowest numbered byte
address location in the field.
Table 150: Device Attribute Data Structure
Description
Data Structure Revision Number
1st Device Attribute
...
30th Device Attribute
Off-line data collection status
Self-test execution status
Total time in seconds to complete off-line data
collection activity
Current segment pointer
Off-line data collection capability
S.M.A.R.T. capability
S.M.A.R.T. device error logging capability
Self-test failure check point
Short self-test completion time in minutes
Extended self-test completion time in minutes
Reserved
Vendor specific
Data structure checksum
12.42.2.1 Data Structure Revision Number
The Data Structure Revision Number identifies which version of this data structure is implemented by the device.
This revision number identifies both the Attribute Value and Attribute Threshold Data structures.
12.42.2.2 Individual Attribute Data Structure
The following defines the 12 bytes that make up the information for each Attribute entry in the Device Attribute
Data Structure.
Table 151: Individual Attribute Data Structure
Description
Attribute ID Number (01h to FFh)
Status Flags
Attribute Value (valid values from 01h to FDh)
Vendor Specific
Total Bytes
Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
Byte
Offset
2
12
12
1
1
2
1
1
2
1
1
1
1
12
125
1
512
Byte
1
2
1
8
12
203
Value
00h
0010h
02h
15Eh
16Ah
16Bh
16Ch
16Eh
16Fh
1Bh
170h
0003h
172h
01h
173h
174h
175h
176h
182h
1FFh
Offset
00h
01h
03h
04h

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