we have a need to take snapshots on SQL host which have cluster configured with three nodes. it worked fine with replication. After we added a fourth node to the cluster, the snapshots failed to take on schedule with errors "No SQL resource is discovered on the host", "An error occurred while retrieving the cluster resources of type 'Network Name' The RPC server is unavailable. ".
does anyone else ever had same issue? Please share your experience.
1). we only configured plugin on one host, do we have to add all four SQL hosts to the SnapCenter?
2). we configured to backup SQL instance from one host.