disk space

I'm trying to recover disk space on my system.
        It started with a test data base that was loaded on last Friday, to
do some testing for a customer of mine. The data base was larger than my
hard drive and how it ended up was my disk % ASP used was 99.2 per cent,
some of their journals did not get restored since I ran out of room. That
was OK since I attached my own journals for testing and the testing is now
complete.
        After the test we did a DLTLIB, of the test data base, and the hard
drive dropped to 96.2 %. Did an IPL last night and the hard drive is still
96.2%. I should be at 70%. Any ideas on how to recover this space? I'm
guessing a disk reorganization as a last resort.
        By the way, the system ran fine with the hard drive this full. Ran
slower than usual but performed better than I expected. 
Thanks,
Art  
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