Since we got heavy fragmentation in our storagepools of type file we think about using predefined,preallocated volumes. What's your experience with preallocated vols of type file? I've read about some problems because TSM deletes the new defined volume before usage and let the new volume grow. See http://www.adsm.org/lists/html/ADSM-L/2004-12/msg00306.html
Regards Stefan Holzwarth