Proxmox 2.3 new install with backup problems

Hi Team,

I have a cluster of 3 nodes all on 2.3

I noticed that after the backup, I get issues with the exchange server running on a win 2003 64, from the gui it says running but when i console to it, its powered off.

I just noticed that this morning another server was powered off, a win2003 dc and had to power it on.

This problem started after i moved to 2.3, a scratch install.

Backup type is snapshot and gzip.

backup goes to a nfs share.

Box is running.raw and running from an iscsi lun.

This morning when the exchange server booted up, checkdisk started and found a few errors that it corrected.

Am I missing anything.
Pls advise.

Cheers,

Raj