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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?

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Can you provide some specifics on the BSOD? –  ErnieTheGeek Jun 25 '12 at 13:45
    
Also, did you do this? support.microsoft.com/kb/958662 –  ErnieTheGeek Jun 25 '12 at 13:46
    
@ErnieTheGeek thanks for the link I didn't try that yet - Here are the crash details, I'm unable to open the dump files (Win7SDK won't install for me, working on it) Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7601.2.1.0.272.7 Locale ID: 1033 Additional information about the problem: BCCode: 1000007e BCP1: FFFFFFFFC0000005 BCP2: FFFFF8000168A480 BCP3: FFFFF88002769F08 BCP4: FFFFF88002769760 OS Version: 6_1_7601 Service Pack: 1_0 Product: 272_3 –  Payson Welch Jun 25 '12 at 14:28
    
Follow the technote and try it again, let us know afterwards. –  ErnieTheGeek Jun 25 '12 at 15:09
    
Cool thanks, I have to wait until the weekend to test this but I'll update. –  Payson Welch Jun 26 '12 at 13:20

1 Answer 1

up vote 1 down vote accepted

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
http://support.microsoft.com/kb/2460912

"0x0000007E" Stop error when you run a VSS-based backup application in Windows 7 or in Windows Server 2008 R2
http://support.microsoft.com/kb/2548124

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"
http://support.microsoft.com/kb/2708549

or here:

Computer randomly stops responding after you use the VSS software provider in Windows Server 2008 R2 or in Windows 7
http://support.microsoft.com/kb/2627052

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Thanks this looks promising, my version of volsnap.sys is not the current one - I have to wait until the weekend to test this though but I'll update. –  Payson Welch Jun 26 '12 at 13:20
    
This worked great, glad it was so simple. –  Payson Welch Jul 2 '12 at 13:19
    
Glad to hear it helped. –  Greg Askew Jul 2 '12 at 13:30

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