If a general log that is being used by CICS® as a forward recovery log (or for automatic logging) fails, CICS ensures that any files that were using that log are closed, and that appropriate messages are issued to warn operators.
The associated messages recommend that a new backup of the affected data sets must be made. This is because the failure of the forward recovery log means that it cannot be used if forward recovery becomes necessary. New backup copies of the actual data sets, which at this stage are unaffected by the failure, ensure that the failed logs are redundant.
When backup copies have been made, processing can resume with different forward recovery logs.