| Previous | Next |
| DNS_ERROR_RRL_LEAK_RATE_LESSTHAN_TC_RATE | DNS_ERROR_VIRTUALIZATION_INSTANCE_DOES_NOT_EXIST |
DNS_ERROR_VIRTUALIZATION_INSTANCE_ALREADY_EXISTS
The virtualization instance identifier is already in use
A DNS virtualization instance is a logical partition inside one Windows DNS Server that can independently host zones and zone scopes. Microsoft documents that the same zone names can exist in different virtualization instances. MS-DNSP therefore requires the virtualization instance identifier to be unique when a new instance is created.
Enumerate existing instances and compare the actual virtualization identifier, not only the friendly name or description. If the existing instance represents the intended tenant or partition, add or manage zones under it instead of recreating it. If it is obsolete, inventory its zones and scopes before deletion because the protocol defines instance deletion as removal of the contained zones and zone scopes.
What to inspect
- List all virtualization instances and match the exact requested identifier.
- Compare friendly name and description separately from the instance ID.
- Inspect zones hosted under the existing instance before deciding whether it should be reused or removed.
References
- Microsoft: DNS Server virtualization instances
- MS-DNSP: DNS Server management operations
- Microsoft: Get-DnsServerZone and zone state properties
Looking for a different code? Search another status or error code.