I have a Domain consisting of two Server 2012R2 Domain controllers with a Domain and Forest Functional level of Windows Server 2003.
I need to replace these Domain Controllers with 2x Server 2016 and some initial research suggests a number of actions required, particularly with regard to moving from FRS replication to DFS Replication.
I believe the actions are these below. Grateful if anyone can confirm these are all the actions ,are they in the correct order and can you help with the questions on each line?:-
1) Move Forest Functional level from 2003 to 2008
2) Migrate to DFSR using powershell/dfsrmig (Do I need to do this on all dcs?)
3) Disable FRS service on all DCs
4) Move Domain Functional Level to 2008
5) Build new 2016 DC servers (will these automatically use DFSR?)
6) Migrate FSMO roles to new server (PDC)
7) Uninstall AD from old server 2012R2 Servers