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ERROR_NODE_NOT_AVAILABLE
The node object exists but cannot participate in this operation
This code indicates node availability rather than resource health. The node can still be known to cluster configuration while its current state prevents the operation. A stopped Cluster Service, pause or drain workflow, shutdown, or membership loss can all change whether a node is usable.
Inspect the cluster-wide node view before troubleshooting an individual resource DLL. If the node is unavailable, resource operations targeted at that node can fail without ever reaching application-specific startup code.
What to inspect
- Query node State on the active cluster and identify recent pause, drain, restart, or shutdown activity.
- Check Cluster Service and communication events on the affected node and its peers.
- Use another eligible node for the role only after confirming possible-owner and dependency requirements.
Get-ClusterNode | Format-Table Name, State
Get-ClusterGroup | Format-Table Name, OwnerNode, StateReferences
- Microsoft Open Specifications: MS-CMRP glossary
- Microsoft: FailoverClusters PowerShell module
- Microsoft: Get-ClusterLog
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