ORA-00397 Instance recovery process terminated with error

Cause: The foreground process doing instance recovery died. Action: Check the foreground trace file for the cause of recovery failure.

ORA-00368 Checksum error in redo log block

Cause: The redo block indicated by the accompanying error, is not vaild. It has a checksum that does not match the block contents. 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…