Cause
This error occurs when the checksum calculation, performed on a record fetched from disk, does not match the checksum that was computed and stored with the record when it was written to disk.
A checksum mismatch means that the record was only partially written to disk or the record has been corrupted for some other reason. (For details, see "
Action
Restore the database from backup and then perform a roll-forward recovery to reapply transactions completed since the backup. Ensure that you ascertain and eliminate the root cause of the problem, especially if it is hardware related, to avoid a recurrence.