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How to raise the domain functional level from 2000 to 2003 mode?

Posted on 2014-03-12
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Last Modified: 2014-05-28
Hello,

I'm preparing to upgrading my DC to 2012 R2. But before I can move forward I was told that I needed to raise the domain functional level from 2000 to 2003 mode? I am aware of where this should be applied in 2003 SBS. (Active Directory Domains & Trusts)

I need to know the best practices for a job like this as well as are their any common pit falls that I should be aware of before attempting this task. Would system down time need to occur?

Any specific details/screenshots/links/articles or other would be greatly appreciated!

Thanks in advance,
Wattz
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Question by:nickywattz
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jpgobert earned 500 total points
ID: 39923598
As long as all of your domain controllers are at least 2003 then raising the functional level will be pretty seamless.

The following article from Microsoft gives the details you're looking for:  How to raise Active Directory domain and forest functional levels
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Author Comment

by:nickywattz
ID: 39923683
We only have one 2003 DC. So if I understand correctly it is as simple as selecting "Windows Server 2003" from the drop down and hitting "Raise"? I will take a look at the material you have provided.
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LVL 8

Expert Comment

by:jpgobert
ID: 39923716
It really and truly is that simple.  It is an important update and ends up being a total let down in the excitement area when you see how simple it is...  no fanfare... just a quick update and *poof*.

I know that sounds dumb but it is true...
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Author Comment

by:nickywattz
ID: 39923959
Awesome that doesn't sound dump hah. I was hoping it was exactly just that simple. I needed confirmation. Which you have provided. Thanks!
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Author Comment

by:nickywattz
ID: 39950443
Hello,

Regarding my question, I have tried the recommendation and I ended up getting the attached message. I'm not quite sure what needs to be done. If you could provide any relevant information that would be great.

Thanks in advance!
Raise-Domian-level.jpg
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