Deskstar 7K160 Hard Disk Drive Specification
178
12.17.3.1 Self-test log data structure revision number
The value of this revision number shall be 01h.
12.17.3.2 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.
12.17.3.3 Extended Self-test log descriptor entry
The content of the self-test descriptor entry is shown below.
12.17.4 Read Stream Error Log
Table 109 defines the format of the Read Stream Error log. Entries are placed into the Read Stream Error log only
when the SE bit is set to one in the Status Register. The 512 bytes returned shall contain a maximum of 31 error
entries. The Read Stream Error Count shall contain the total number of Read Stream Errors detected since the last
successful completion of the Read Log Ext command with LBA Low register set to 22h. This error count may be
greater than 31, but only the most recent 31 errors are represented by entries in the log. If the Read Stream Error
Count reaches the maximum value that can be represented after the next error is detected the Read Stream Error
Count shall remain at the maximum value. After successful completion of a Read Log Ext command with the LBA
Low Register set to 22h, the Read Stream Error Log shall be reset to a power-on or hardware reset condition, with
the Error Log Index and Read Stream Error Count cleared to zero. The Read Stream Error Log is not preserved
across power cycles and hardware reset.
Description
Bytes
Offset
Self-test number
1
00h
Self-test execution status
1
01h
Power-on life timestamp in hours
2
02h
Self-test failure check point
1
04h
Failing LBA (7:0)
1
05h
Failing LBA (15:8)
1
06h
Failing LBA (23:16)
1
07h
Failing LBA (31:24)
1
08h
Failing LBA (39:32)
1
09h
Failing LBA (47:40)
1
0AH
Vendor specific
15
0BH
26
Table 103: Read Stream Error Log
Description
Bytes
Offset
Structure Version
1
00h
Error Log Index
1
01h
Read Stream Error Log Count
2
02h
Reserved
12
04h
Read Stream Error Log Entry #1
16
20h
Read Stream Error Log Entry #31
16
1F0h
Summary of Contents for Deskstar 7K160
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Page 297: ...Write Buffer 249 Write cache function 93 Write Continuous bit 102 Write DRQ interval time 30 ...