We have 1 domain environment with 3 subnets (branch locations) here.
There are 2 domain controllers in each branch (one primary DC and one backup DC).
All of them are running either Server 2003 or 2003 R2.
I'd like to start upgrading them to Server 2008 R2 and figured starting with a backup DC would cause the least disruption.
I was thinking about bringing one of the backup DCs to my location, demoting it, installing Server 2008 R2 onto it, giving it the same name, doing as much of the configuration as I could here, then bringing it back to its proper subnet, changing the static IP and finishing up the configuration.
Does this make sense at all?
Or is it more logical to do EVERYTHING in that branch location on its own subnet?
The issue I have is time. It's nearly a 2 hour drive to that location and if I try to do everything in that location any issues could complicate matters causing me to either get home much later than normal or have to make an additional trip there to finish the job.
I've rebuilt domain controllers before with the same Operating System but have never created a DC on Server 2008 R2.
That brings me to my next question. I'm thinking I'll need to upgrade the AD schema or something as well. I was looking at THIS
article and was wondering if I'm supposed to be performing all 3 commands or only the middle one (I only have 1 domain / forest).
This is a learning experience for me but I don't want to bring the company to a grinding halt or introduce all kinds of new issues.
Maybe there's someone on here I could bounce ideas with back and forth, etc.