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)1FFh1Data structure checksum
(*3)182h125Vendor specific
(*3)176h12Reserved
(*2)(*1)175h1Extended self-test completion time in minutes
(*2)(*1)174h1Short self-test completion time in minutes
(*2)(*1)173h1Self-test failure check point
01h(*1)172h1S.M.A.R.T. device error logging capability
0003h(*1)170h2S.M.A.R.T. capability
1Bh(*1)16Fh1Off-line data collection capability
(*2)(*1)16Eh1Current segment pointer
(*2)(*1)16Ch2
Total time in seconds to complete off-line
data collection activity
(*2)(*1)16Bh1Self-test execution status
(*2)(*1)16Ah1Off-line data collection status
(*2)(*1)15Eh1230th Device Attribute
↕↕↕↕↕
(*2)(*1)02h121st Device Attribute
0010hbinary00h2Data Structure Revision Number
ValueFormatOffsetByteDescription
(*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.
Travelstar 60GH & 40GN hard disk drive specifications
170
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