ORA-00345 redo log write error block %s count %s

Cause: An IO error has occurred while writing the log Action: Correct the cause of the error, and then restart the system. If the log is lost, apply media/incomplete recovery.

ORA-00354 Corrupt redo log block header

Cause: The block header on the redo block indicated by the accompanying error, is not reasonable. Action: Do recovery with a good version of the log or do time based recovery up to the indicated time. If this happens when archiving, archiving of the problem log can be skipped by clearing the log with the…