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7K200 SATA OEM Specification 

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14.16.3.2 

Self-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. 

14.16.3.3 

Extended 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

 

26   

Table 79 Extended Self-test log descriptor entry 

14.16.4 

Command Error 

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

Byte 

7 

6 5 4 3 2 1 0 

0 

NQ 

UNL Rsv 

TAG 

1 

Reserved 

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 80 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 UNL field (Byte 0 bit 6) indicates whether the error condition was a result of receiving an IDLE 

IMMEDIATE command with the Unload Feature.  If cleared to zero, the reason for the error was 

not due to reception of an IDLE IMMEDIATE command with Unload Feature.