Hitachi HTS541616J9SA00 Specifications page 145

Figure 92 Error data structure
State field contains a value indicating the device state when command was issued to the device.
Value State
x0h Unknown
Sleep
x1h
Standby
x2h
x3h Active/Idle
S.M.A.R.T. Off-line or Self-test
x4h
x5h-xAh Reserved
xBh-xFh Vendor specific
Note: The value of x is vendor specific.
Self-test log data structure
14.40.6
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 log pointer
Reserved
Data structure checksum
Note: n is 0 through 20
Figure 93 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 has been recorded, the oldest descriptor will be overwritten with new
descriptor.
Self-test log pointer 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.
Selective self-test log data structure
14.40.7
The Selective self-test log is a log that may be both written and read by the host. This log
allows the host to select the parameters for the self-test and to monitor the progress of the
self-test. The following table defines the contents of the Selective self-test log which is
512 bytes long. All multi-byte fields shown in these data structures follow the specifications
for byte ordering.
Description
Data structure revision
Starting LBA for test span 1
Ending LBA for test span 1
Travelstar 5K160 (SATA) Hard Disk Drive Specification
Bytes Offset Read/Write
2 00h R/W
8 02h R/W
8 0Ah R/W
145/167
30
Bytes 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