I run a Ubuntu Server 12.04 on a 2008 R2 hyper-v cluster and it runs pretty fine. We have a few CentOS VMs running on this cluster too.
When MS DPM operates its backup during the night, we find on the morning the Ubuntu VM on a paused state and we need to restart it. Our CentOS VMs do not do that.
Any idea? Should I need to integrate a specific service/package?