We have a number of sbs2011 servers that are running out of space on C drive. We installed with 120 GB C partition. All programs and user files are on second drive. Exchange data and logs on other drive. I had tried all posted solutions; i.e moving swap file to other drive, disabling shadow copies, changing location of server logs. On one server, I would fluctuate between 12 GB and 5 GB, at which point mail would stop flowing.
I have run the WSUS cleanup utility numerous times, but it always aborts with a database error. I have not been able to determine what is using up the rest of the space on C. My problem (concern?) is that this server that has been lean on space, suddenly has 42 GB free on C and I have not done anything recently. The system is running fine. WSUS database is still on C. I am wondering what could have caused SBS to free up all this space suddenly. This has happened on 2 SBS servers. I'm happy to have the free space, but concerned and curious as to what freed up the space. Any suggestions would be greatly appreciated.