ORA-19585: prematureend of volume on piece string Cause: Whilecreating the indicated backup piece, an end-of-volume condition
was encountered before all of the backup set control data was written to the
backup piece. This is most likely a media error, because the amount of backupset
control data is very small in relation to the total amount of data in a backupset. Action: Retrythe piece with a larger piece of output media.