Netware 6 SP5 NSS Volume.

I have tried to do a purge of the volume and that seems to have a lot of
items to be purged. However, when I look at consoleOne it appears that at
least 18GB is not actually being purged.

Back in the old volume system days I used to get this and used to have to do
a vrepair to purge items that were difficult to purge out.

How do I do the equivalent on an NSS volume. The volume is starting to
cause me problems and I need to clear these items off.