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10.8.33.6 SMART Read Log Sector
COMMAND CODE 1 0 1 1 0 0 0 0 REGISTER
REGISTER SETTING NORMAL COMPLETION
DR DRIVE No. no change
CY C24Fh no change
HD no change
SN Log Sector Address no change
SC 01h 00h
FT D5h no change
This command returns the indicated log sector contents to the host.
Sector number indicates the log sector to be returned as described in the following Table.
Log Sector
Log sector address Content R/W
00h Reserved RO
01h SMART error log RO
02h-05h Reserved RO
06h SMART self-test log RO
07h-7Fh Reserved RO
80h-9Fh Host vendor specific R/W
A0h-FFh Reserved VS
Key −
RO –Log is read only by the host.
R/W –Log is read or written by the host.
VS –Log is vendor specific thus read/write ability is vendor specific.
10.8.33.6.1 Error log sector
The following Table defines the 512 bytes that make up the SMART error log sector.
SMART error log sector
Byte Descriptions
0 SMART error log version
1 Error log index
2-91 First error log data structure
92-181 Second error log data structure
182-271 Third error log data structure
272-361 Fourth error log data structure
362-451 Fifth error log data structure
452-453 Device error count
454-510 Reserved
511 Data structure checksum
10.8.33.6.2 Error log version
The value of the SMART error log version byte is set to 01h.
10.8.33.6.3 Error log data structure
An error log data structure shall be presented for each of the last five errors reported by the device. These error
log data structure entries are viewed as a circular buffer. That is, the first error shall create the first error log data