User manual

Hitachi hard disk drive specifications
216
11.42.5 SMART summary error log sector
The following defines the 512 bytes that make up the SMART summary error log sector. All multi-byte fields
shown in this data structure follow the ATA/ATAPI-7 specifications for byte ordering.
Description
Bytes
Offset
SMART error log version
1
00h
Error log index
1
01h
1
st
error log data structure
90
02h
2
nd
error log data structure
90
5Ch
3
rd
error log data structure
90
B6h
4
th
error log data structure
90
110h
5
th
error log data structure
90
16Ah
Device error count
2
1C4h
Reserved
57
1C6h
Data structure checksum
1
1FFh
512
Table 156 SMART summary error log sector
11.42.5.1 SMART error log version
This value is set to 01h.
11.42.5.2 Error log index
This points the most recent error log data structure. Only values 1 through 5 are valid.
11.42.5.3 Device error count
This field contains the total number of errors. The value will not roll over.