Losing large amount of disk space quickly
Posted on 2012-08-27
We currently use a DELL PowerVault 745N storage server running Server 2003 Appliance Edition as our primary file server.
There are 2 logical partitions C: 10 GB (OS, programs, Etc) and D: 688 GB (all data). We've been nearing the limit of space available on the D drive, hovering between 80 and 100 GB free space. We've also permanently archived very old files that are no longer needed on a regular basis which has bought us a little more space. Recently we've noticed a huge drop in free space, as much as 30 GB in 4 hours. No user created files seem to be the cause and I've checked the pagefile.sys file but it's just a few hundred MB.
The first time this happened we archived files and gained about 10 GB of space, but then in a day or two the available space jumped back up to 100GB and each time the space drops it seems to reappear a day or two later.
My question is, what could be the cause of the sudden drop and then reappearance of the space on the HDD? Is there a background process that I am not aware of that's creating temporary files and then cleaning them up later? If so, what/where on the server should I check?
Any information/insight is appreciated as we recently lost over 50 GB of space in 2 days and we're not quite ready to replace this server yet.