Deskstar 7K160 Hard Disk Drive Specification
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Error Log Index and Write Stream Error Count cleared to zero. The Write Stream Error Log is not reserved across
power cycles and hardware reset.
Table 105: Write Stream Error Log
The Data Structure Version field shall contain a value of 02h indicating the second revision of the structure format.
The Write Stream Error Log Count field shall contain the number of Write Stream command entries since the last
power on, since this log was last read, or since hardware reset was executed.
The Error Log Index indicates the error log data structure representing the most recent error. Only values (31:0)
are valid.
12.17.6 Streaming Performance Log
Figure 112 defines the format of the log returned by the Read Log Ext command, when the LBA Low register is
20h. This data set is referred to as the Streaming Performance Parameters log, the length of which (in sectors) is
statically indicated in Read Log Ext log address 00h (Log Directory).
Description
Bytes
Offset
Structure Version
1
00h
Error Log Index
1
01h
Write Stream Error Log Count
2
02h
Reserved
12
04h
Write Stream Error Log Entry #1
16
10h
Write Stream Error Log Entry #2
16
20h
...
Write Stream Error Log Entry #31
16
1F0h
512
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Страница 297: ...Write Buffer 249 Write cache function 93 Write Continuous bit 102 Write DRQ interval time 30 ...