Hello I am running Server 2008 R2 with a handful of Hyper-V guest nodes. If Windows backup runs without any of the Hyper-V nodes running, the server is fine. If Hyper-V runs a backup while the Hyper-V nodes are running, it is fine until a few minutes after the backup completes, and then it BSODs. The storage location for the backup is iSCSI - I am wondering if anyone has any input on what might be causing this? I don't have the Hyper-V nodes setup on a vlan and there is only one NIC on the server. Is it possible this is a networking / driver issue, and if so how would I reconfigure the networking to fix this?
What is your version of volsnap.sys? This is probably fixed in the most recent hotfix.
"0x0000007E" or "0x00000050" Stop error when you create snapshots of a volume in Windows Server 2008 R2 or in Windows 7
"0x0000007E" Stop error when you run a VSS-based backup application in Windows 7 or in Windows Server 2008 R2
But don't use those hotfixes. Use the most recent version 6.1.7601.21854 of volsnap.sys availble here:
Stop error when you create a VSS snapshot backup in Windows 7 SP1 or in Windows Server 2008 R2 SP1: "fvevol!FveFilterDeviceControl+1d0"
Computer randomly stops responding after you use the VSS software provider in Windows Server 2008 R2 or in Windows 7