Hitachi HTS543280L9SA00 14.17.4Command Error, 14.17.3.2Self-testdescriptor index, Description

5K320 SATA OEM Specification

14.17.3.2Self-test descriptor index

This indicates the most recent self-test descriptor. If there have been no self-tests, this is set to zero. Valid values for the Self-test descriptor index are 0 to 18.

14.17.3.3Extended Self-test log descriptor entry

The content of the self-test descriptor entry is shown below.

Description		Bytes	Offset
Self-test number		1	00h
Self-test execution status		1	01h
Power-on life timestamp in hours		2	02h
Self-test failure check point		1	04h
Failing LBA	(7:0)	1	05h
Failing LBA	(15:8)	1	06h
Failing LBA	(23:16)	1	07h
Failing LBA	(31:24)	1	08h
Failing LBA	(39:32)	1	09h
Failing LBA	(47:40)	1	0Ah
Vendor specific		15	0Bh
Table 80 Extended Self-test log descriptor entry		26

14.17.4Command Error

The following table defines the format of the Command Error data structure.

Byte	7	6	5	4	3	2	1	0
0	NQ	Rsv	Rsv	Reserved		TAG
1
2				Status
3					Error
4				LBA Low
5				LBA Mid
6				LBA High
7				Device
8				LBA Low Previous
9				LBA Mid Previous
10			LBA High Previous
11				Reserved
12				Sector Count
13			Sector Count Previous
14 – 255				Reserved
256 – 510				Vendor Unique
511			Data Structure Checksum

Table 81 Command Error information

The TAG field (Byte 0 bits 4-0) contains the tag number corresponding to a queued command, if the NQ bit is cleared.

The NQ field (Byte 0 bit 7) indicates whether the error condition was a result of a non-queued or not. If it is cleared, the error information corresponds to a queued command specified by the tag number indicated in the TAG field.

The bytes 1 to 13 correspond to the contents of Shadow Register Block when the error was reported.

115