Table 5.18 Smart Self-Test Log Data Format - Fujitsu MHW2040AC Product Manual

SMART self-test
•
The host computer can issue the SMART Execute Off-line Immediate sub-
command (FR Register = D4h) and cause the device to execute a self-test. When
the self-test is completed, the device saves the SMART self-test log to the disk
medium.
The host computer can issue the SMART Read Log Sector sub-command (FR
Register = D5h, SN Register = 06h, SC register = 01h) and can read the SMART
self-test log.

Table 5.18 SMART self-test log data format

Byte
00, 01 Self-test log data structure
02 Self-test log 1
03
04, 05
06
07 to 0A
0B to 19
1A to 1F9 Self-test log 2 to 21
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.
Check sum
•
Two's complementary for the lowest-order 1 byte that is obtained by adding 1 byte
after another for as many as 511 bytes from the top.
C141-E258
Item
Self-test number (SN Register Value)
Self-test execution status
Life time. Total power-on time [hours]
Self-test error No.
Error LBA
Vendor unique
(Each log data format is the same as that in
byte 02 to 19.)
5.3 Host Commands
5-55