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ERROR_DS_REPLICA_SET_CHANGE_NOT_ALLOWED_ON_DISABLED_CR
A disabled crossRef blocks replica-set changes
A crossRef describes a naming context in the configuration NC and carries operational partition state. When that cross-reference is disabled, Active Directory does not allow the replica set to be changed as though the NC were active. Adding or removing a replica would otherwise mutate topology for a partition whose forest metadata says it is disabled.
The right question is why the crossRef is disabled and what lifecycle operation is in progress. This can be related to partition creation, removal, or an interrupted administrative workflow. Blindly enabling the object only to make the replica call pass can reactivate a partition with stale or incomplete topology.
What to inspect
- Locate the crossRef for the NC in the Partitions container and inspect its enabled state on multiple DCs.
- Check configuration-NC replication and event history to determine whether the disabled state is intentional or stale.
- Complete or recover the partition lifecycle operation first; change replica membership only after the crossRef state is consistent.
References
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