Hitachi 7K100 - Travelstar - Hard Drive Specifications page 143

The Extended SMART self-test log sector shall support 48-bit and 28-bit addressing. All 28-bit entries contained in
the SMART self-test log, defined in 11.42.6, "Self-test log data structure" on page0203, shall also be included in
the Extended SMART self-test log with all 48-bit entries.
Self-test log data structure revision number
Reserved
Self-test descriptor index (7:0)
Self-test descriptor index (15:8)
Descriptor entry 1
Descriptor entry 2
...
Descriptor entry 18
Vendor specific
Reserved
Data structure checksum
These descriptor entries are viewed as a circular buffer. The nineteenth self-test shall create a descriptor entry that
replaces descriptor entry 1. The next self-test after that shall create a descriptor entry that replaces descriptor entry
2, etc. All unused self-test descriptors shall be filled with zeros.
13.15.3.1 Self-test log data structure revision number
The value of this revision number shall be 01h.
13.15.3.2 Self-test descriptor index
This indicates the most recent self-test descriptor. If there have been no self-tests, this is set to zero. Valid values for
the Self-test descriptor index are 0 to 18.
13.15.3.3 Extended Self-test log descriptor entry
The content of the self-test descriptor entry is shown below.
Self-test number
Self-test execution status
Power-on life timestamp in hours
Self-test failure check point
Failing LBA (7:0)
Failing LBA (15:8)
Failing LBA (23:16)
Failing LBA (31:24)
Failing LBA (39:32)
Failing LBA (47:40)
Vendor specific
Description
Description
Travelstar 7K100 Hard Disk Drive Specification
129
Bytes Offset
1 00h
1 01h
1 02h
1 03h
26 04h
25 1Eh
26 1D8h
2 1F2h
11 1F4h
1 1FFh
512
Bytes Offset
1 00h
1 01h
2 02h
1 04h
1 05h
1 06h
1 07h
1 08h
1 09h
1 0AH
15 0BH
26