7.Drive Diagnostics

Sequence Test

00

Reset Sequence (61, 62, 71,72, 30)

H

Main Processor Kernel Test

 

61

Main Processor ROM checksum

P

62

Main Processor Destructive RAM Test

P

Drive Test

 

 

71

Buffer RAM Test

PH

72

DMA Test

PH

7.2.5.RECEIVE DIAGNOSTIC RESULT command

Whenever a diagnostic test is executed, the drive automatically prepares a diagnostic test result that can be returned to the host computer when a RECEIVE DIAGNOSTIC RESULT command is issued.

If the PF bit in the SEND DIAGNOSTIC command was sent to one, the diagnostic test result will be preceded by a four-byte header which will be of the form:

Table 7-3: RECEIVE DIAGNOSTIC RESULT - SCSI-2 Header

Bit

7

6

5

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

0

 

 

 

Page Code (81h)

 

 

 

1

 

 

 

 

Reserved

 

 

 

2

(MSB)

 

 

Page Length (00 05h)

 

 

 

3

 

 

 

 

 

 

 

 

(LSB)

Regardless of the PF bit in the SEND DIAGNOSTIC command, the five bytes of diagnostic test result information will be of the form:

Table 7-4: RECEIVE DIAGNOSTIC RESULT

Bit

7

6

5

 

4

 

3

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

0

Reset

Time

 

Reserved

 

 

 

Error Set

 

 

Error

Re-Sync

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

Error

Code

 

 

 

 

2

 

 

 

 

 

Result A

 

 

 

 

3

 

 

 

 

 

Result B

 

 

 

 

4

 

 

 

 

Diagnostic Test Number

 

 

 

 

Reset error: This bit is set when an error occurs during power-on self-test.

Time Re-Sync:This bit indicates that the time stamp saved with the error log has no relation to that of the previous entry. It is only set by the logging routine within the data buffer as an error is logged.

7-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

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Image 166
Sony SDX-1100V/R manual Receive Diagnostic Result command, Sequence Test, Main Processor Kernel Test, Drive Test