Adding Windows 2008 R2 DC's to 2003/2008 Standard domain

I have a Domain that has three Windows 2003 DC's and 1 Windows 2008 Standard DC. I plan to add three Windows 2008 R2 DC's to this domain replacing the 2003 DC's and reimaging the 2008 Standard DC to 2008 R2. This is a child domain.

My question is what is the best practices way to go about this?  Any issues or areas of concern I should know about? A detailed step by step answer would be great.  Thx
wayy2beAsked:
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Mike KlineConnect With a Mentor Commented:
The steps are just like what I outlined here for 2008

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/Q_26358376.html

There are great links in there too.

The only difference is if your current DCs are 32 bit then use adprep32 when doing the prep.  No issues of concern here; make sure to make the 2008 R2 boxes GCs and if you run DNS on your current DCs also make this box a DNS server.

Another good link (not in that previous answer)  http://technet.microsoft.com/en-us/library/upgrade-domain-controllers-to-windows-server-2008-r2(WS.10).aspx

Thanks

Mike
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Darius GhassemConnect With a Mentor Commented:
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wayy2beAuthor Commented:
Thanks guys. Whats the easy way to move dhcp from the 2003 box to the 2008 box?
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Mike KlineCommented:
This KB article is good  http://support.microsoft.com/kb/962355

You could also just keep DHCP on the 2003 member server.

Thanks

Mike
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wayy2beAuthor Commented:
What is best practice from a security stand point, dc or member server?
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Darius GhassemCommented:
Doesn't really matter I usually put on a DC.
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wayy2beAuthor Commented:
Thanks for all the great advice!
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wayy2beAuthor Commented:
Sorry all!  I forgot to close this question!  Thanks to both of you for the great advice!
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Mike KlineCommented:
No problem,  so I'm assuming you are up and running with 2008 R2...Nice Work!!
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