We are running exchange 2010 - SP1 under 2008 R2. We are finding that something is filling up the system drive (c:) causing the system to shutdown due to back pressure.
For example, yesterday we had 13Gb free, I come in this morning and Find that I have 2Gb Free on the system drive!. The mail-stores are kept on another drive and are backing up just fine and clearing the mail-store logs So the problem is the system drive.
I have cleared out the \inetpub\logs\LogFiles\W3SVC1 Folder and turned off logging for now.
What else could cause 10Gb of space to be filled over night?