Does rebooting the server clear the tempdb file? I had a situation recently where the C drive on a Unity server filled up completely. I rebooted the server and then almost 3 gigs was freed up. I was told that it had happened before. The tempdb, which is on the C drive, was filling up and the server was rebooted and it cleared the tempdb file. I can't confirm this at this time. Is there anything else that could cause the C drive to fill up rapidly?
The commserver folder is on the D drive, version is 4.2.1 on a Win2K3 server.
Thanks for any response.