IBM has a PTF for this. You can check it out at:
I have also seen several threads via google that state the problem can be fixed using the RCLSTG command; see links below.
<b>Be careful</b> using RCLSTG to fix this issue. It’s is very likely that the form of the command will be:<pre>
If the *DBXREF option isn’t selected, then a full ‘reclaim storage’ may be kicked off. Reclaiming the database cross-reference might take 20 minutes. Reclaiming all storage might take 20 hours… or more.