A long time ago, we had a specific DC, removed by an unexperienced admin, so we had to remove all related objects, mannually, using Sites And Services tool, and making sure that all old objects were also removed, like deleting DNS records and also checking ntdsutil/metadata cleanup procedure
So, now, í´m migrating from FRS to DFS-R and, the mig tool is showing references of the old (and previously removed AD/DC)
dfsrmig /getMigrationState
The following Domain Controllers are not in sync with Global state ('Redirected'):
Domain Controller (Local Migration State) - DC Type
===================================================
OLD_SERVER_NAME ('Start') - Writable DC
OTHER1 ('Start') - Writable DC
OTHER2 ('Start') - Writable DC
Where the heck this reference is coming?
As far as I konow, this old server never had DFS Namespace amd maybe it had DFS replication for file services purposes, but anyway, why this old refernces are there, if we got rid of this old DC/AD a long time ago? (now we have Win2008R2, WIn2012R2 and WIn2016, but at the time of the removal of this old DC, there were only WIn2008R2)
Also the NETDOM QUERY DC also shows the name of this old Server too...