This monitor checks the state of Windows Server Failover Cluster (WSFC) service. The monitor is in unhealthy state and alert is raised when the cluster is offline or in the forced quorum state. All availability groups hosted within this cluster are offline or the disaster recovery action is required. Monitor state is healthy when the cluster state is in the normal quorum.
The WSFC cluster is offline or the service is started in the force quorum state. This availability group is not available to client applications.
Cluster service is offline.
Cluster service is in the forced quorum state.
You need to perform the forced quorum or disaster recovery workflow through cluster administrator tool or contact cluster administrator to resolve the cluster issue. For more information, refer to the forced quorum and disaster recovery how to guide in SQL Server 2012 Books Online.