5.3 Host Commands

Table 5.19 Data format of SMART Summary Error Log (2/2)

Byte

Item

 

 

 

Error log data structure 2

5C to 1C3

to

 

Error log data structure 5

 

 

1C4, 1C5

Total number of drive errors

 

 

1C6 to 1FE

Reserved

 

 

1FF

Check sum

 

 

Command data structure

Indicates the command received when an error occurs.

Error data structure

Indicates the status register when an error occurs.

Total number of drive errors

Indicates total number of errors registered in the error log.

Checksum

Two's complement of the lower byte, obtained by adding 511-byte data one byte at a time from the beginning.

Status

 

 

 

 

Bits 0 to 3: Indicates the drive status when received error commands according

 

 

to the following table.

 

Bits 4 to 7: Vendor unique

 

 

 

 

 

 

Status

 

Meaning

 

 

 

 

 

 

 

0

 

Unclear status

 

 

 

 

 

 

 

1

 

Sleep status

 

 

2

 

Standby status

 

 

 

 

 

 

 

3

 

Active status (BSY bit = 0)

 

 

 

 

 

 

 

4

 

Off-line data collection being executed

 

 

5 to F

 

Reserved

 

C141-E249

5-67

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Fujitsu MHW2080BS manual Data format of Smart Summary Error Log 2/2, Command data structure, Error data structure, Status