Error Message:

The quorum resource was changed. The old quorum resource could not be marked as obsolete. If there is partition in time, you may lose changes to your database since the node that is down will not be able to get to the new quorum resource.

Explanation:

The administrator changed the quorum disk designation without all cluster nodes present. When other cluster nodes attempt to join the existing cluster, they might not be able to connect to the quorum disk and participate in the cluster, because their configuration indicates a different quorum device.

User Action:

On any node whose configuration does not list the current quorum disk, start the Cluster service with the -fixquorum option. With this option, you can change the nodes quorum disk parameter.