I have an issue with a recently migrated SBS 2011 server. All appears to be running fine but I noticed it running slow and saw that it was running at 100% CPU. Taking a look, it's mainly two services using it all up:
Both are fluctuating constantly between 20-50% CPU. I have just rebooted the server and it's still behaving like this. I've tried stopping and restarting services etc with no luck at all.
The server has 16Gb of RAM and about 90gb of free hd space. Before the reboot store.exe was using just under 8gb of RAM, which is as expected, and total ram usage was around 80% - as expected.
The Server sits at a client with about 15 users. Mailboxes for 10 of these people are capped at 2Gb. Several users do have very large mailboxes (10gb) due to a large number of CAD files, plans, drawings etc.
Any ideas on what could be causing the high CPU usage?