>ANR8834E Library volume 04DB5C is still present in library 3570LIB drive DRIVE2
>(/dev/rmt1), and must be removed manually.
>
>But drive is empty, and all cartridges are in their home-slots.

Wojciech - If this is a solid problem (continues to persist)
           I would use the tapeutil command's general subcommands
to acquire drive info in the same way that TSM is doing it, through
the Atape driver, and see if that shows the phantom tape as being
"mounted".  You might try power-cycling the drive to get it back
in touch with reality.

   Richard Sims, BU