Title: corrupt redo log block header

Description:

corrupt redo log block header

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 UNARCHIVED option. This must be followed by a backup of every datafile to insure recoverability of the database.

Cause:

The block header on the redo block indicated by the accompanying error, is not reasonable.