Hyper V Host Lost CSV (c000020c) while Backup

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Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby max0664 » Tue Sep 04, 2012 4:33 pm

Hi,

I have a Hyper V Cluster with 6 Nodes and CSV Disks (Fiber Channel). 2 Nics for Guest only and 2 Nics for all other traffic.
OS: Windows Server 2008 R2
AV: ForeFront with exclude ClusterStorage

I do Backups with Veeam. But sometimes i get this Error while the backup is running:
Code: Select all
Cluster Shared Volume 'Volume2' ('Cluster Disk 2') is no longer available on this node because of 'STATUS_CONNECTION_DISCONNECTED(c000020c)'. All I/O will temporarily be queued until a path to the volume is reestablished.

The Guest on the this note with the disk on the Cluster disk 2 are Restarting.

Someone have idea why my Note lost the Connection to the CSV?
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby Gostev » Tue Sep 04, 2012 7:48 pm

Hi Max, what is your support case number for this issue? Thanks.
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby max0664 » Wed Sep 05, 2012 8:59 pm

i dont have a case number i only tried veeam
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby Gostev » Thu Sep 06, 2012 1:52 am

If you'd like this investigated for you, please open a support case. I cannot really help you until you do this, because this will be the first thing developers will ask me about when I approach them with this. They always want to see debug logs first...
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby jonhsykes » Tue Apr 11, 2017 6:04 pm

I realize this is an old thread however I have this same issue. A support case has was opened yesterday (02124784); unfortunately no advances have been made.
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby foggy » Tue Apr 11, 2017 6:07 pm 1 person likes this post

Hi Jon, I'm not able to check for the solution, since the OP didn't provide his support case ID. Please continue working with your engineer.
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Re: Hyper V Host Lost CSV (c000020c) while Backup

Veeam Logoby jonhsykes » Tue Apr 11, 2017 6:18 pm

Hi foggy, unfortunately the engineer that emailed me yesterday didn't fully "engage" in the problem yet. This is what I received, response in bold.

"Hello Jon,

Thank you for contacting Veeam Support. The logs show problems with C:\ClusterStorage\Volume19 and C:\ClusterStorage\Volume20 - these two locations are a part of most of the errors that we are seeing at the moment. That is correct. Once the replication for these CSVs/VMs on these CSVs failed, the host was unresponsive, cluster service stopped, VMs were in a failed state.

Are these two parts of the storage different from the rest of the clustered storage ? Can you tell me the hardware details of the storage and how it is connected ? Can you rescan the host and retry this replication job ? This is Hitachi VSP storage, using 2x Fibre Channel HBAs with MPIO. It is the same as other Hyper-V clusters in the environment, some of which we have replicated successfully. Since the replication job caused the cluster node/hyper-v host to fail I would prefer not to kick the job off yet until we determine root cause or at least have a better understanding of what happened so we can proceed forward.

Please let me know what happens next."
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