Table 161 Self-Test Log Data Structure - Hitachi HDS721050CLA362 Specifications

11.42.6 Self-test log data structure
The following defines the 512 bytes that make up the Self-test log sector. All multi-byte fields shown in these
data structures follow the ATA/ATAPI-7 specifications for byte ordering.
Description
Data structure revision
Self-test number
Self-test execution status
Life time power on hours
Self-test failure check point
LBA of first failure
Vendor specific
...
Vendor specific
Self-test index
Reserved
Data structure checksum
Note: n is 0 through 20
Table 160
Self-test log data structure
The data structure contains the descriptor of Self-test that the device has performed. Each descriptor is 24 bytes
long and the self-test data structure is capable to contain up to 21 descriptors.
After 21 descriptors have been recorded, the oldest descriptor will be overwritten with new descriptor.
Self-test index points the most recent descriptor. When there is no descriptor the value is 0. When there is
descriptor(s) the value is 1 through 21.
HITACHI Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
Bytes
220
Offset
2 00h
1 n*18h+02h
1 n*18h+03h
2 n*18h+04h
1 n*18h+06h
4 n*18h+07h
15 n*18h+0Bh
2 1Fah
1 1FCh
2 1FDh
1 1FFh
512