Hi,

retry:
there do is a command,
I guess DSMSERV QUERY DBVOLUME or similar,
which will list you what the content of the tape mounted in tape drive.
There is definitely no need to reinstall
TSM after you have queried a tape,either good or bad,
with this this command.

Please be sure to check the correct syntax in the admin guide/reference,
this is the trick.

regards and good luck
Juraj