Hey there,
Very odd situation. We needed to upgrade the tools and apply a security patch on one of our Windows 2008 Clusters. Both nodes are virtualized. We moved all the cluster resources to one node. On the inactive node we installed the security patch, rebooted. No issue. All services for the cluster remained available.
We then installed updated Vmware Tools on the same inactive node and rebooted. The Windows Cluster resource went offline as the passive node rebooted. Event logs show loss of connectivity to the Quorum but nothing else. Once the inactive node came back online, the cluster was fine.
Moved everything from the active node to the inactive node and repeated the process. Same result.
I'm kind of at a loss. How can a tools upgrade on a passive node cause the entire windows cluster to fail?
Any ideas would be most helpful.
Thanks,
-Adam