Deskstar T7K500 Hard Disk Drive Specification
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12.42.4 S.M.A.R.T. Log Directory
The following table defines the 512 bytes that make up the S.M.A.R.T. Log Directory. The S.M.A.R.T. Log Direc-
tory is S.M.A.R.T. Log Address zero and is defined as one sector long.
Table 144: S.M.A.R.T. Log Directory
The value of the S.M.A.R.T. Logging Version word shall be 01h. The logs at log addresses 80-9Fh shall each be
defined as 16 sectors long.
12.42.5 S.M.A.R.T. summary error log sector
The following figure defines the 512 bytes that make up the SMART summary error log sector. All multibyte fields
shown in this data structure follow the ATA/ATAPI-6 specifications for byte ordering.
Table 145: S.M.A.R.T. summary error log sector
12.42.5.1 S.M.A.R.T. error log version
This value is set to 01h.
12.42.5.2 Error log pointer
This points to the most recent error log data structure. Only values 1 through 5 are valid.
12.42.5.3 Device error count
This field contains the total number of errors. The value will not roll over.
Description Byte Offset
S.M.A.R.T. Logging Version 2 00h
Number of sectors in the log at log address 1 1 02h
Reserved 1 03h
Number of sectors in the log at log address 2 1 04h
Reserved 1 05h
... ... ...
Number of sectors in the log at log address 255 1 1FEh
Reserved 1 1FFH
512
Description Byte Offset
S.M.A.R.T. error log version 1 00h
Error log pointer 1 01h
1st error log data structure 90 02h
2nd error log data structure 90 5Ch
3rd error log data structure 90 B6h
4th error log data structure 90 110h
5th error log data structure 90 16Ah
Device error count 2 1C4h
Reserved 57 1C6h
Data structure checksum 1 1FFh
512
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