We have a 3 node failover cluster running about 30 hyper-v VMs. Over the past month, we've had failures three times. After looking at the error logs, the following message appears as the first error when the failure occurred:
Cluster resource 'xxxxxxx' (resource type ", DLL 'vmclusres.dll') either crashed or deadlocked. The Resource Hosting Subsystem (RHS) process will now attempt to terminate, and the resource will be marked to run in a separate monitor.
It appears on random nodes, and the cluster resource (marked by xxxxxxx above) appears to be random VMs when it occurs.
Any idea where to start?