What does Windows error code 5940 (ERROR_CLUSTER_SINGLETON_RESOURCE) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: Only one instance of this resource type is allowed in the cluster.

Previous	Next
ERROR_CLUSTER_EVICT_INVALID_REQUEST	ERROR_CLUSTER_GROUP_SINGLETON_RESOURCE

ERROR_CLUSTER_SINGLETON_RESOURCE

ERROR_CLUSTER_SINGLETON_RESOURCE means the cluster allows only one instance of this resource type. Creating a second independent instance is not supported by that resource type.

What to check

List existing resources of the same type and determine which one already owns the required function.
Check whether the new configuration should reuse the existing resource rather than create another one.
Read the resource type documentation before attempting to bypass the restriction.

Get-ClusterResource | Group-Object ResourceType | Sort-Object Count -Descending

Microsoft: FailoverClusters PowerShell module

Microsoft: Get-ClusterLog

Microsoft: Failover Clustering overview

Looking for a different code? Search another status or error code.