I'll apologize in advance for my lack of knowledge with this. We have 3 2008 R2 Datacenter servers all running HyperV Hosts and configured with Failover Clustering. We have a number of CSV's and VM's configured within the Failover Cluster Feature. I recently patched all 3 Hosts and restarted them one at a time. During the last host restart, I noticed the Failover Clustering Manager tree of items (Services and applications, Nodes, Cluster Shared Volumes, Storage, Network) fell off the tree. What I mean by this is when clicking the "+" next to Failover Cluster Manager on the two systems not being restarted, nothing was displayed in the tree. Once the system came back up, the tree of configured items came back online. The restart did not shut any VM's down nor disconnect any systems from their CSV's.
When I look at the Cluster's name, I see a "Current Host Server". I'm guessing the Host that restarted, was most likely the "Current Host Sever" at the time? In the event of a failed host, should I be concerned about this? Should one of the other Hosts
resume the role of being the "Host Server"? I was a bit nervous during the restart wondering if the server failed to come back online, how would I manage the Failover Cluster environment.