We help IT Professionals succeed at work.

Adding a Domain Controller

stlhost asked
This is just an additional one for right now but if I wanted to make it a primary later down the road do I need to run dcpromo again?
Watch Question

Sr. Systems Administrator
domain controllers are multi-master replication so there isn't a primary and backup as there was with NT
if you are referring to FSMO roles and moving them to the new domain controller if you plan to decommission the first one, then you can use ntdsutil to do that; not dcpromo

Using Ntdsutil.exe to transfer or seize FSMO roles to a domain controller

you run dcpromo on the old server when FSMO roles are moved and there are no other dependencies for clients (DNS, DHCP, etc.)


I will be retiring a 2003 domain after 2008 is up and running so I wasn't sure if there was a particular one that acted as a primary. Thanks
Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015

Based on your question you simply transfer the roles. When you are transferring the roles you need to make sure that for the PDC role you have to set it up with an external time source.

Setup External Time Source for PDC