[Event ID] 1581 [Source] Microsoft-Windows-FailoverClustering [Message] 
The restore request for the cluster configuration data failed to make a copy of the existing cluster configuration data file (ClusDB). While attempting to preserve the existing configuration, the restore operation was unable to create a copy at location ‘%1′. This might be expected if the existing configuration data file was corrupt. The restore operation has continued but attempts to revert to the existing cluster configuration may not be possible.