Came into environment where if a DC in a DC without any FSMO is offline is impacting production.
I suspect the following:
A.Member servers primary DNS point to this server
B. Application owners have hardcode IP or FQDN into there code.
Server is physical cant p2v
So i am thinking of doing the following
A. Assign new IP to DC
B. Add the old IP to a new DC
C. Create a cname that matches the hostname (& fqdn) just to stop having problems
A. Change members server DNS to point to new DC server as primary
B. Followup with determining what is hitting this server directly via IP
C. Finally demote the old DC controller with Dcpromo