Setting up new Server 2008 DC to replace existing Server 2003 DC in Parallel

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Guys above described everything what you need. I'm wondering why you want to use existing IP address and one thing comes my mind up. Probably your other servers have static IP configuration, where you set also DNS server IP. On existing DC you have the only one DNS server, right? If so, use leew suggestion and set up virtual DC, install new 2008 DC and move all FSMO to it. Then demote your old DC and set up additional IP address (from 2003) on 2008's NIC. Set DNS binding to this one and that's all. Server name can be completely different, it doesn't matter for your environment. But if you really want to use it after old DC decomisisoning you can set up in DNS new host record (A) or alias (in case that you use specific scripts which use DNS server name).

I hope that I described it clearly ;)

ASKER

Hi

Thanks for all the comments.

The DC holds no roles that I can see as these are held on a DC at another location.

So if this is the case I will do the following.

Setup new server with new name and IP address and configure everything apart from dcpromo.

Get to site and transfer data.

Switch off existing 2003 server.

Start new server and dcpromo and add sites and subnets and then replicate domain info.

Does this cover it?

Thanks

Assuming its just a DC and your confident that the data and stuff can be transferred, then yes. Sites and subnets are stored within AD though ?

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ASKER

It is not a new domain but an existing DC and the schema master is kept on a seperate DC which I have checked.

What does the adprep /forestprep and adprep /domainprep accomplish? I have not done this before, just dcpromo and replicated and all the info has come back from the schema master. Please can you explain?

Thanks

What does the adprep /forestprep and adprep /domainprep accomplish? I have not done this before, just dcpromo and replicated and all the info has come back from the schema master. Please can you explain?

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it prepares a domain and a forest for the introduction of a 2008 DC.

ASKER

I thought I only needed to do this for the first 2008 DC in an existing forest, ?

I already have several 2008 DC's so is this step still necessary? Sorry to repeat but want to make sure I understand the reasons for performing these actions before setting loose.

once per forest, once per domain... so if you have already done both, you should be fine.

ASKER

Great - Thank you all for all your help.

OK, so you do not have to do it again. It is one time process :) But youdidn't metion that your environment has 2008 DC and other DCs :]

This time you have to only decomision old 2003 DC by running dcpromo on it again :) That's all, then you can shut it down.

@woolnoir: again slow typing ;)