4 don't use mass storage (much) 2 want AFS 1 slow network traffic with AFS 1 miss masget/masput 1 CFS slow from T3E 1 faster restoration of migrated files 1 keep CFS data when move to HPSS 1 haven't tried HPSS; getting passwords too painful 1 if NERSC migrates to DFS, make mass storage part of DFS 1 little faith in them 1 no opinions 1 don't know what this is