Tuesday, September 14, 2010

Exchange 2007 CCR Cluster - The cluster quorum or resource group 'Cluster Group' is offline on node

I ran into an issue with an Exchange 2007 CCR cluster where the cluster name and cluster IP resources would not come online.



When running Test-ReplicationHealth the following error was experienced:

The cluster quorum or resource group 'Cluster Group' is offline on node 'PEREXM01'. Cluster 'TWMAIL1-CL’ may not be remotely reachable, or it may have lost redundancy. The following resources are offline:
Cluster Name: Offline
Cluster IP Address: Failed




In my situation this error was caused by a duplicate IP address. The cluster IP address 192.168.3.54 was used on another device on the internal network taking own the cluster.

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