7 - 5
SONY SDT-10000/SDT-11000 DDS Tape Drive
7. Diagnostics
7. 1. 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:
Bit
7
6
5
4
3
2
1
0
Byte
0
Page Code (81h)
1
Reserved
2
(MSB)
3
Page Length (00 05h)
(LSB)
Table 7-3: RECEIVE DIAGNOSTIC RESULT - SCSI-2 Header
Regardless of the PF bit in the SEND DIAGNOSTIC command, the five bytes of diagnostic test result information will
be of the form:
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
Table 7-4: RECEIVE DIAGNOSTIC RESULT
Reset error: This bit is set when an error occurs during power-on selftest.
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.
Error set:
Two set of error codes exist. The definition of the error is dependent upon when set is taken from as follows:
0 - Runtime errors
2 - Drive diagnostic errors
Error code:
Error codes for each error set are described in section 7.1.6
Summary of Contents for DDS-4
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