Fujitsu MHW2060BS, MHW2100BS Checksum, Guarantee failure threshold, Log Directory Data Format

Models: MHW2040BS MHW2100BS MHW2060BS MHW2120BS MHW2080BS

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5.3 Host Commands

Checksum

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

Guarantee failure threshold

The limit of a varying attribute value. The host compares the attribute values with the thresholds to identify a failure.

 

Table 5.18 Log Directory Data Format

 

 

 

 

 

Byte

 

 

 

Item

 

 

 

 

 

00

 

SMART Logging Version

 

01

 

 

 

 

 

 

02

 

Number of sectors of Address "01h"

 

 

 

 

 

03

 

Reserved

 

 

 

 

 

04

 

Number of sectors of Address "02h"

 

 

 

 

 

05 to 0B

 

Reserved

 

 

 

 

 

0C

 

Number of sectors of Address "06h"

0D to 11

 

Reserved

 

 

 

 

 

12

 

Number of sectors of Address "09h"

 

 

 

 

 

13 to FF

 

Reserved

 

100

 

Address 80h

 

Number of sector

 

 

 

 

101

 

 

Reserved

 

 

 

 

 

Address 81h

 

"102" and "13F" are both the same

102 to 13F

 

to

 

 

 

format as "100-101"

 

 

Address 9Fh

 

 

 

 

 

140 to 1FF

 

Reserved

 

 

 

 

 

 

SMART error logging

If the device detects an unrecoverable error during execution of a command received from the host, the device registers the error information in the SMART Summary Error Log (see Table 5.19) and the SMART Comprehensive Error Log (see Table 5.20), and saves the information on media.

The host issues the SMART Read Log Sector sub-command (Features field = D5h, Sector Number field = 01h, Sector Count field = 01h) and can read the SMART Summary Error Log.

The host issues the SMART Read Log Sector sub-command (Features field = D5h, Sector Number field = 02h, Sector Count field = 33h) and can read the SMART Comprehensive Error Log.

C141-E249

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Fujitsu MHW2060BS, MHW2100BS manual Checksum, Guarantee failure threshold, Log Directory Data Format, Smart error logging