7.Drive Diagnostics
7-4
SONY AIT-3Ex drive SDX-800V series Ver.1.0
Sequence Test
00
Reset Sequence (61, 63, 71,72, 77-79, 80, 81, 30)
H
Mechanism Controller Kernel Test
20
Mechanism Controller Microprocessor Test
P
Main Processor Kernel Test
61
Main Processor ROM checksum
P
62
Main Processor Destructive RAM Test
P
Drive Test
71
Buffer RAM Test
PH
79
Data Compression Functions and DMA Line Test
PH
80
Internal Message Bus 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
Byte
7 6 5 4 3 2 1 0
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
Byte
7 6 5 4 3 2 1 0
0
Reset
Error
Time
Re-Sync
Reserved Error
Set
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.
