-invalidates the contents of an existing backup tape in the configuration database. This is meant as a recovery mechanism when a good backup is damaged either by faulty hardware or user error, e.g. the tape is eaten by the drive or is overwritten.
+invalidates the contents of an existing backup tape in the configuration database\. This is meant as a recovery mechanism when a good backup is damaged either by faulty hardware or user error, e\.g\. the tape is eaten by the drive or is overwritten\.