> Right off the top of my head, it almost sounds like a file is being held
> open after its been deleted ... we went through that with the new aspseek
> a little while back, where 170gig just disappeared overnight, but du
> showed hardly any disk space being used ...
>
> Does restarting the database server (not rebooting, just restarting the
> postmaster) free up the disk space?
No - have to reboot. That's probably because of softupdates though.
Chris