Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
203
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
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 Byte Offset Value
Data Structure Revision Number 2 00h 0010h
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 1Bh
S.M.A.R.T. capability 2 170h 0003h
S.M.A.R.T. device error logging capability 1 172h 01h
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
Description Byte Offset
Attribute ID Number (01h to FFh) 1 00h
Status Flags 2 01h
Attribute Value (valid values from 01h to FDh) 1 03h
Vendor Specific 8 04h
Total Bytes 12
To Next Page
Loading...
