I am monitoring a Windows 2012 Cluster for our SharePoint SQL databases. We have been having intermittent cluster failovers that are momentarily bringing the cluster down. I've been reading the Thwack documentation for Windows 2012 failover clustering monitors, and I find the following description for Resource Control Manager: Groups Online:
This monitor returns the number of online cluster resource groups on this node. The returned value should be above zero at all times.
I am unclear as to specifically what this is measuring. I have a production cluster and a test cluster. On both nodes of the test cluster this monitor is up on both the primary and secondary nodes. On the production cluster, it is showing the primary node as a returned value of 1 and on the secondary node, a returned value of 0. It is showing the monitor on the secondary node as critical. Any thoughts as to why this might be? Any other information that would be useful in troubleshooting?
Thank you for your time!
John