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Sense Data Error Recovery Methods
5 - 18 C141-E167
Table 5.4 Error Recovery Processing Procedures (2 of 5)
Recovery
Method
Recovery Processing Procedure
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 recovery method 0.
•
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 6.4).
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.
10 1) Issue the START instruction using the START/STOP UNIT command ("Immed" = 0).
2) When the START/STOP UNIT command is terminated abnormally, perform recovery
method 1.
3) When the START/STOP UNIT command is terminated normally, reissue the original
command (Retry).
11 1) Wait for formatting (FORMAT UNIT command) to be completed.
2) Reissue the original command (Retry).