This is a specific question regarding setting up a 4 and a separate 8 node Hyper-V cluster. Specifically, both of these clusters were setup with a single CSV. In speaking to a vendor who is helping us setup a new backup appliance, trying to troubleshoot why when the backups of the VMs were running, we had missed polls on VMs in the cluster, as well as sometimes having a node of the cluster crash. This has happened on both of these clusters (again, with a single CSV; which according to the backup people is incorrect, they were very specific when they said we need to have "A CSV PER NODE of the cluster)."
So when setting up a 4 or 8 node Hyper-V cluster, does each node of the cluster require a CSV ("a CSV PER NODE"), or should there be a single CSV shared by the nodes of the clusters?
I could not find specific information on MS's technet that says exactly that, but a couple of diagrams they showed me from MS (the backup people), it looked like each node of a cluster should have their own CSV, as well as their own documentation which stated very specifically that each node must have it's own CSV to accommodate backing up the VMs through the cluster (rather than the workaround we are using now, backing each VM up as if it were a Physical Machine).
Any advice on architect the cluster correctly would be greatly appreciated.
The 8 node is Windows 2012 R2, and the 4 node is Windows 2008R2.