Search the activity log for the past few days with the volume name in the
search.  You may see that the volume was put into a drive and then found to
be mis-labeled, not labeled or in some other way messed up.  If that
happens, and the volume doesn't get far enough to be used, TSM will mark it
private so as not to try to use it again.  I've seen this particularly with
tapes that are in the library, but not labeled.

Kelly J. Lipp
Storage Solutions Specialists, Inc.
PO Box 51313
Colorado Springs, CO 80949
lipp AT storsol DOT com or kelly.lipp AT storserver DOT com
www.storsol.com or www.storserver.com
(719)531-5926
Fax: (240)539-7175