I have a 3494 tape library configured on my TSM 4.2.1.25 Each tape capacity is around 40GB. The weird thing is when I assigned only 6 tapes to a storage pool, then I do a 'q stgpool', the total capacity is showing 4.2TB when there's only 6 tapes assigned to that storage pool. Should it be 40*6=240GB?? How can it became 4.2TB??