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Table 4.4
Recovery
Method
1
Error recovery processing is impossible. Terminate processing.
2
This is a programming error and error recovery processing is impossible. Terminate
processing and correct the error in the system (INIT) programming.
3
This is an error in the SCSI protocol and error recovery processing is impossible.
Terminate processing and check the system's SCSI bus operation.
4
1)
Reissue the original command. (Retry)
2)
If the command is terminated with the same error when retried, perform recovery
method 3 or 1.
3)
If the command is terminated with a different error when retried, execute the
recovery processing procedure for that error.
5
1)
After waiting about 1 second, reissue the original command (Retry).
2)
If it doesn't recover after 10 retries, perform recovery method 1.
6
1)
Reissue the original command. (Retry)
2)
If it doesn't recover after 10 retries, perform recovery method 3.
7
1)
Reissue the original command. (Retry)
2)
If it doesn't recover after 10 retries, perform recovery method 1.
8
1)
If the DTE flag in the MODE SELECT parameter is "0," perform recovery method 0.
2)
If the DTE flag in the MODE SELECT parameter is "1," execute one of the
following according to the content indicated by the sense data.
• If the "Valid" bit is "1," and if the address of the final data block in the data
block group in the area specified in the command is indicated in the information
field, perform
• If the "Valid" bit is "0," or even if the "Valid" bit is "1," but the address of a data
block which is not that of the final data group in the area specified in the
command is indicated in the information field, reissue the original command.
3)
If this error (Other than a positioning error [15-xx]) occurs repeatedly in the same
data block, implement alternate block allocation processing (shown in Section 5.4).
9
1)
Issue the MODE SENSE command and when a RECOVERED ERROR is reported,
read the "Current" value in the changed MODE SELECT or MODE SELECT
EXTENDED parameter.
2)
If the value actually set in that parameter page is within the INIT's permissible
range, perform recovery method 0.
3)
If the value actually set in that parameter page is not within the INIT's permissible
range, adjust the value specified in the parameter and issue the MODE SELECT or
MODE SELECT EXTENDED command again.
Error Recovery Processing Procedures (1 of 4)
Recovery Processing Procedure
recovery method 0.
C141-E039-01EN
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