VM with Windows2008R2 stops by itself

[Krustaka]

Hi all,

I am kind a new to ProxMox and KVM but I am running a POC our company and we have the following setup:

2 Nodes (12Core, 144GB RAM, 2TB HDD each)
ProxMox 3.1-3/dc0e9b0e is running on both
They are configured as a cluster
I have 6 VMs with CentOS and one with Windows2008R2 SE.

The problem is that few times a day the Windows VM gets a power-off. In the Windows logs you can clearly see that it is not a Windows initiated power-off:
"The previous system shutdown at 11:26:37 AM on ‎10/‎1/‎2013 was unexpected."

I have noticed that the power-off times are always around the same time the following event appears in the ProxMox Tasks log:
"Start all VMs and Containers"

Do you guys have any idea when is the "Start all VMs and Containers" task triggered and by who? What does it do?

All CentOS VMs are running fine so far.

Thanks,
Krustaka

 

[e100]

"Start All VMs and Containers" happens on Proxmox Host startup.

You very likely have some sort of hardware/power issue that is causing the physical server to restart.
Nearly every odd problem like that I have had was tracked down to a faulty RAM module.