reclaiming disk space

[dvdpa]

Hi

I had a dell "diagnostic" tool run "wild" in a loop. It would start up at boot. It produced such a load that I had to power off the server several time before I was able to figure out what was going on.

The end result is I was able to unistall it but my disk space which was 18gb before this fiasco is now 37 gb.

Is this something that rebooting with a forced fsck will solve or do I need to figure out what the files were that were created?

OS is redhat 4 es

Thanks

Chuck