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From: Christophe CHESNEAU on 13 Apr 2010 14:23
Hello,

I have a forest and a domain with 3 Windows 2003 Server DCs. In order to
make a test during 2 weeks, I have to install and promote a Windows 2008
Server R2 into DC (without particulary role).
I know I will have to do an ADPREP with the W2K8 R2 DVD but forest and
domain will not change their level.

2 weeks after I will retrograde the server as member and suppress it from
the network (It will leave only W2K3 severs).
Do you know if there could be a problem for the AD architecture ?

Thanks in advance.

Christophe

From: Ken on 13 Apr 2010 15:45
Hello,

After preparing the schema you should be able to promote the
Windows 2008 server without any problems. Take the usual
precautions of running utilities like dcdiag, etc to make
sure Active Directory is happy BEFORE you start testing.
Make sure DNS and any pre-existing replication issues are
handled before promoting the 2008 DC.
After that you should be fine for your testing.
After your testing, it should not be a problem to run
dcpromo again and demote that 2008 DC to a member server.
Just remember that if you have transferred any roles to the
2008 DC that you transfer them back to your 2003 DCs before
demoting it. I am primarily speaking of the FSMO roles.
But this obviously applies to other roles such as Global
Catalog, DNS, etc.
After demoting the DC, run dcdiag to make sure your domain
is running without problems. You may also want to look at
your replication topology to make sure that the replication
links are updated and no longer trying to replicate with the
2008 DC. This can be quickly determined by using the Active
Directory Sites and Services tool.

Including these steps is a more cautious approach and will
help you spot any problems before they grow larger than they
need.

--
Ken Aldrich
Senior Support Engineer
Visual Click Software
512-231-9990 x 2
mailto:supportw(a)visualclick.com[/email]
From: Meinolf Weber [MVP-DS] on 13 Apr 2010 17:18
Hello Christophe,

Answered in the same posting in microsoft.public.windows.server.active_directory.
PLease avoid multiposting, use crossposting with a newsreader like outlook
express or Windows live mail instead.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hello,
>
> I have a forest and a domain with 3 Windows 2003 Server DCs. In order
> to
> make a test during 2 weeks, I have to install and promote a Windows
> 2008
> Server R2 into DC (without particulary role).
> I know I will have to do an ADPREP with the W2K8 R2 DVD but forest
> and
> domain will not change their level.
> 2 weeks after I will retrograde the server as member and suppress it
> from
> the network (It will leave only W2K3 severs).
> Do you know if there could be a problem for the AD architecture ?
> Thanks in advance.
>
> Christophe
>


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