DFSR Migration for RODC is stuck

During a DFSR sysvol migration on Windows Server 2008, problems can occur with the migration of Read Only Domain Controllers.

See the image below.

The RODC is stuck trying to move to the Prepared state. First go to the RODC and type Repadmin /SyncAll /AeD.

On the PDC Emulator, run dfsrmig /GetMigrationState.

If the migration completed, continue on. If not type dfsrmig /CreateGlobalObjects. This will manually create the global objects for DFS replication.

On the PDC Emulator, run dfsrmig /GetMigrationState. You should be ready to move on to the next step in the migration process.

Comments

AlexG said…

RODC in perimeter network was stuck as mentioned, however the repadmin and dfsrmig commands did not get things moving. Turned out to be an issue with the firewall protecting the RODC. Allowed full access between the RODC in the perimeter network and all other domain controllers, and the migration moved right along. Saw a lot of activity over ports 49204, 49155, 49156, etc. after I opened things up. Planning to change the firewall back after this finishes, and try to restrict DFSR replication traffic to specific ports only.

February 16, 2012 at 7:07 AM

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