> Even after restarting the TSM server we still cannot redefine the drive (we
> get the same error message).
> We have managed to delete and redefine one of our other tape drives.
>
> Has anyone got any suggestions about this error and how we can redefine our
> drive?

Robert,  it probably sounds silly, but restarting (i.e. power the robot off
and on) did help us. Some time ago we had the same problem, except that it
was a 3590 drive in a 3494 library.

Cheers,
Henk ten Have