Yikes, I didn't know that!  Thanks for pointing it out.

If you think you have tapes disappearing and don't want to do a manual
audit, you can write an audit program/script.

1)Pull a list of tapes that are physically in the library:  q libv
2)Pull a list of tapes that are in DRM VAULT status:  q drmedia *
wherest=vault
3)Create a list of tapes that SHOULD be accounted for (either generate a
tape range, if it's contiguous, or build a static list in a file).

Have your script compare the volsers in list (3) to list (1) + (2).

ANything that is on list 3, but isn't in either list (1) or (2), is MIA.
It's much easier to go to the vault looking for a specific VOLSER, than to
audit everything in there...

I also run a script that compares (1) to (2) at least once a month, to make
sure everything that was supposed to go to the vault actually did...