When restoring data from tapes that were written with cloning enabled, P5 will sometimes ask for a tape that's not available - possibly because that tape of a clone pair is being stored off-site. To force P5 to use the other tape of the clone pair (i.e. the one that is on-site), set the off-site tape to 'disabled' status. P5 will then request the on-site clone tape.

In a future release, P5 will first look for on-site (available) tapes before requesting off-site (unavailable) tapes.

Along those same lines... a restore job may sometimes report something like '0 files on 0 volumes' for files or folders selected to be restored. The reason for a message like that is typically that the volume in question is currently set to disabled status. Re-enable the volume and the restore will most likely work.