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5.3 Host Commands
C141-E239 5-69
Table 5.21 SMART self-test log data format
Byte Item
00, 01 Self-test log data structure
02 Self-test number (Sector Number field Value)
03 Self-test execution status
04, 05 Life time. Total power-on time [hours]
06 Self-test error No.
07 to 0A Error LBA
0B to 19
Self-test log 1
Vendor unique
1A to 1F9 Self-test log 2 to 21
(Each log data format is the same as that in
byte 02 to 19.)
1FA, 1FB Vendor unique
1FC Self-test index
1FD, 1FE Reserved
1FF Check sum
• Self-test number
Indicates the type of self-test executed.
• Self-test execution status
Same as byte 16Bh of the attribute value.
• Self-test index
If this is "00h", it indicates the status where the self-test has never been executed.
• Checksum
Two's complement of the lower byte, obtained by adding 511-byte data one byte at a
time from the beginning.