| Previous | Next |
| ERROR_CLUSTER_WRONG_OS_VERSION | ERROR_CLUSCFG_ALREADY_COMMITTED |
ERROR_CLUSTER_CANT_CREATE_DUP_CLUSTER_NAME
ERROR_CLUSTER_CANT_CREATE_DUP_CLUSTER_NAME means the requested cluster name is already in use. The name can conflict with DNS, Active Directory computer objects, or an existing cluster name.
Check both DNS and Active Directory for the requested identity, including stale computer objects left by earlier deployments. Reusing a name safely requires understanding which object owns it, not simply deleting the first matching record.
What to check
- Check DNS for existing A/AAAA records and verify whether they belong to an active service.
- Check Active Directory for an enabled computer object with the same name.
- Choose a unique cluster name or resolve stale identity objects through the approved directory-management process.
Microsoft: Failover Clustering overview
Looking for a different code? Search another status or error code.