Extended Comprehensive Smart Error Log - Hitachi HDS721050CLA362 Specifications

11.18.2 Extended Comprehensive SMART Error log

Table 103
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
SMART error log version
Reserved
Error log index (7:0)
Error log index (15:8)
1st error log data structure
2nd error log data structure
3rd error log data structure
4th error log data structure
Device error count
Reserved
Data structure checksum
Table 103 Extended Comprehensive SMART Error Log
11.18.2.1
Error log version
The value of this version shall be 01h.
11.18.2.2
Error 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.
11.18.2.3
Extended 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 Deskstar & CinemaStar 7K1000.B & Deskstar E7K1000 Hard Disk Drive specification
148
Bytes Offset
1 00h
1 01h
1 02h
1 03h
124 04h
124 80h
124 FCh
124 178h
2 1F4h
9 1F6h
1 1FFh
512