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M204.0175  Roll forward optimization error

The sequence number of the CCARF data set record containing the checkpoint rolled-back-to is recorded during the first pass of roll forward. After rewinding the CCARF data set, pass two of roll forward reads CCARF forward without examining the records read until it reaches the record which it believes contains the rolled-back-to checkpoint. When this record was examined, that checkpoint was not found.

Model 204 rewinds the CCARF data set again, and reads from the beginning examining each record until it finds the rolled-back-to checkpoint or finds and EOF marker.

System manager response: Recovery may complete successfully, though it will take a bit longer to run. In any case, save the audit trail, CCAPRINT, the console log, and copies of both the CCARF and RESTART data sets. Report the problem to Technical Support.

Operator response: Contact the system manager prior to taking any further action.

Message attributes:

RETCODEO=52Sets online return code
RETCODEB=52Sets batch (single user) return code
CLASS=EError class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter
AUDITMSWrites the message with line type MS to the audit trail
NOCOUNTDoes not increment the error count (ERCNT) parameter
OPRWrites the message to the (operator) console
SNAPGenerates a CCASNAP for the run
DUMPGenerates a SYSUDUMP for the entire Model 204 region

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