I have a 4 Node Cluster with 2 Shared Cluster Volumes on an ISCSI SAN. Each node is up-to-date with Updates and is running Server 2012 DataCenter. I have a seperate 2012 server with Microsoft DPM on it I use to backup my VMs. The cluster has 24 diffrent VMs on it all diffrent sizes, OSs, and configurations. Recently DPM has been getting hung on one of the VMs. When the backup gets hung, I get events
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Software snapshot creation on Cluster Shared Volume(s) ('\\?\Volume{f3c25587-f296-481e-b2fc-606c4eef1e92}\') with snapshot set id '{dd4a47b9-e645-4303-9df6-c978b29b3cd5}' failed with error 'HrError(0x00000001)(1)'. Please check the state of the CSV resources and the system events of the resource owner nodes.
and
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Cluster Shared Volume 'Volume1' ('Cluster Disk 1') is no longer available on this node because of 'STATUS_FILE_CLOSED(c0000128)'. All I/O will temporarily be queued until a path to the volume is reestablished.
And naturally I cannot backup the VM. All of the other VMs backup fine.
Anyone got any Ideas?