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Moving from Windows 2000 Native AD to Windows 2008 AD

Our domain is currently running windows 2000 native mode AD.  There are currently four Server 2008 R2 DC's running in the domain, and the last Win2000 DC has been demoted.  We have no DC's running server 2003, although there are two member servers running 2003, one as an application server, and one as an exchange server.  We also have a new server running Win2012 which will be running exchange 2010 once it's up and running.  At that time the current exchange server will be decommissioned.

How do I go about moving from Win2000 native mode to win2008 mode?  What "gotcha's" should I watch out for?

Thanks for your time and answers.
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dcmathis
Asked:
dcmathis
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1 Solution
 
Schnell SolutionsSystems Infrastructure EngineerCommented:
Hello

It looks that you are talking about the functional levels of operations for the domain and the forest. Something important about it is to know that after you increase your functional level you cannot go back, but it is not a critical or dangerous operation, so don't worry about it

What is the limitation? After you raise the functional level to 2003, 2008 or 2008 R2 you won't be able to add domain controllers in your domain lower than your level. For example, if you raise the functional level to Windows server 2008, it means that all your DCs and future DCs will need to be 2008 or newer. But this is just about DCs, you will be able to continue having old clients

What you earn raising the level? You will take advantage of many new functions for many technologies related to AD, like PKI, AD replication, pólices replication, etc

How to make it? For raising up the domain level you can go to the "Active Directory Domains and Trust" mmc console, right click your domain and select the option relate to the domain level. You can make it for your unique or your group of domains, after you are done you can incremente your forest level, right click the higher element in the tree where is your domain/forest and right click on it and choose the option reléase to increment the forest
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Schnell SolutionsSystems Infrastructure EngineerCommented:
By the way, the only requirement for your future implementation of Exchange 2010 is that your domain and forest functional level are at least 2003. The rest (if it is higher is not relevant for Exchange 2010)
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dcmathisAuthor Commented:
Cool.  Thanks!  That's just what I was looking for.
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