Currently we have a 3 node Windows Server 2008 R2 Hyper-V Cluster in production. There are about 3 terrabytes worth of VMs running across these nodes.
It is over-committed, so i've setup two new nodes to add to the cluster.
I've done this before in a SQL cluster but never a Hyper-V cluster.
If I don't run validation when adding the nodes, will there be downtime?
The quorum is setup for disk majority, everything is identical on all nodes that needs to be. Shared storage is recognized and ready on the new nodes. I've gone through every checklist that Microsoft has. I'm just curious if the virtual machines will go offline on the current nodes when i add the two new nodes.
Everything is identical down to the wsus updates installed. From networking to storage everything is perfect.
I don't want to run validation as I know that'll take everything offline.