Domain Functional Level 2003 - Forest Functional Level upgrade from 2000 to 2003

[aldo456321]

Hi folks,

 

I need to get the forest functional level up to 2003 it is currently on 2000. There is only one domain in the forest in the forest and that is already at 2003. Can anyone envisage any issues with this? I haven't been able to find anything thus far.

 

Cheers

[fiza]

If all your DCs are 2003 and you only have the one domain then it shouldnt be a problem.

 

From Microsoft

 

Do not raise the functional level if the domain has or will have a domain controller that is of an earlier version than the version that is cited for that level.

Edited May 16, 2012 by fiza

[plexer]

Hi folks,

 

I need to get the forest functional level up to 2003 it is currently on 2000. There is only one domain in the forest in the forest and that is already at 2003. Can anyone envisage any issues with this? I haven't been able to find anything thus far.

 

Cheers

 

What do you "need" to do this?

 

Raise Domain Function Level in Windows Server 2003 Domains

 

Ben

 

Ben

[aldo456321]

Fiza,

 

I should have said, yes all of the domain controllers are 2003. There is only one domain and that is already at 2003 functional level. I need to raise the forest functional level. Sorry for the confusion in my original post.

 

Ben,

 

This is a prerequisite for Lync server which we are planning on deploying in a couple of months

 

cheers

[plexer]

Raising forest functional level:

 

http://www.petri.co.il/raise_forest_function_level_in_windows_2003.htm

 

Ben

[Michael]

You'll also find introducing 2008 R2 servers will require a minimum of 2003 domain/forest functional levels too.

 

So for those that don't know, you couldn't have a 2000, 2003 and 2008 R2 DC in the same domain, but you could have a 2000 member server (if you really wanted to).