I really need some detailed help upgrading domain controllers so we can look at moving to Azure

Question

So we have 3 Domain controllers in our AD structure. 2 are running on servers that have Server 2008 32 bit installed. One of these is our Global catalog. I also have a server running 2012 64 bit. Now I inherited the responsibility of these machines. All are virtual so creating new servers to be pulled in is no problem. I am no AD expert and nobody at my work is. I want to get this count down to 2 servers running 2019 64 bit and as we add more to the cloud we are considering moving our AD functionality to the cloud eventually as well. I could really use some detailed steps on what my process should be. I appreciate anything anyone can do to help me.

Answer 1

I appreciate all of the suggestions. I will have to go over these links. Sounds like there are issues nobody here even knew we had. I feel like I am in over my head trying to fix things I am unaware were an issue just to get the old servers out. Any other links or suggestions would be so appreciated.

Answer 2

If it were me I'd clean up the metadata. The FRS / DFSR confusion is also a high priority. Then get rid of the old 2008 32 bit domain controllers. 2008 (vista kernel) was always fraught with issues.

Then take another look at things.

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