Jean-Baptiste,

Just 5 tapes??

Well... as it seems to be so little data then (at most 100Gb), why use TSM?
I think TSM is overkill in your case; maybe you should try Backup Exec
instead?

Besides, as someone else already pointed out, please refer to the archives
(www.adsm.org); there have been many discussions along the lines of your
problem.

Regards,

Rick