ORA-19599: block number string is corrupt

admin

ORA-19599: blocknumber string iscorrupt in string string
Cause: Acorrupt block was found in a control file, archived log, or backup piece
that is being read for a backup or copy. Corruption shall not be tolerated incontrol
files, archived logs, or backup pieces.
Action: None.The copy or backup operation fails. Note that in the case of a
backup set, the conversation is still active and the piece may be retried.