11.18.2 Extended Comprehensive SMART Error log

Table 102 defines the format of each of the sectors that comprise the Extended Comprehensive SMART error log. Error log data structure shall not include errors attributed to the receipt of faulty commands such as command codes not implemented by the device or requests with invalid parameters or in valid addresses.

Description

Bytes

Offset

 

 

 

SMART error log version

1

00h

 

 

 

Reserved

1

01h

 

 

 

Error log index (7:0)

1

02h

 

 

 

Error log index (15:8)

1

03h

 

 

 

1st error log data structure

124

04h

 

 

 

2nd error log data structure

124

80h

 

 

 

3rd error log data structure

124

FCh

 

 

 

4th error log data structure

124

178h

 

 

 

Device error count

2

1F4h

 

 

 

Reserved

9

1F6h

 

 

 

Data structure checksum

1

1FFh

 

 

 

 

512

 

 

 

 

Table 102 Extended Comprehensive SMART Error Log

11.18.2.1Error log version

The value of this version shall be 01h.

11.18.2.2Error log index

This indicates the error log data structure representing the most recent error. If there have been no error log entries, it is cleared to 0. Valid values for the error log index are 0 to 4.

11.18.2.3Extended Error log data structure

An error log data structure shall be presented for each of the last four errors reported by the device.

These error log data structure entries are viewed as a circular buffer. The fifth error shall create an error log structure that replaces the first error log data structure. The next error after that shall create an error log data structure that replaces the second error log structure, etc.

Unused error log data structures shall be filled with zeros. Data format of each error log structure is shown below.

Hitachi hard disk drive specifications

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Hitachi HUA722050CLA330/1, HCS721050CLA382 Extended Comprehensive Smart Error log, Error log version, Error log index

HCS721016CLA382, HCS721050CLA382, HCS721025CLA382, HDP725050GLA360, HUA722050CLA330/1 specifications

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