FUJITSU MPE3XXXAE - Manual (Page 121)

C141-E093-01EN 5 - 56
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Error logging capability
Bit 0: Indicates that error logging function.
Bits 1 to 7: Reserved bits
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Check sum
Two’s complement of the lower byte, obtained by adding 511-byte data one byte at a time
from the beginning.
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Insurance failure threshold
The limit of a varying attribute value. The host compares the attribute values with the
thresholds to identify a failure.
If an unrecoverable error is detected during execution of a command received by the device
from the host computer, the device saves the SMART error log on the disk medium.
The host computer can issue the SMART Read Log Sector sub-command (FR register = D5h,
SN register = 01h) and read the SMART error log.
Table 5.11 SMART error log data format (1/2)
Byte Item
00 Error log version number
01 The most recent “Error Log” point
02 to 31 Reserved
32 Device Control register
33 Features register
34 Sector Count register
35 Sector Number register
36 Cylinder Low register
37 Cylinder High register
38 Device/Head register
39 Command register
3A to 3D Elapsed time [ms] from the point when the
power is turned on until command reception
3E Reserved
3F Error register
40 Sector Count register
41 Sector Number register
42 Cylinder Low register
43 Cylinder High register
44 Device/Head register
Error Log Data
Structure 1
Error Data
Structure
Command Data
Structure