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9.2

2003 R2 to 2008 R2 Domain Controller Migration

Asked by Fester7572 in Active Directory

I am starting to put together plans to migrate our AD domain to 2008 R2. The domain history is as folllows:
Single 2003 Domain Controller retired and migrated to 2 * 2003 R2 32bit DCs using standard microsoft methods (ADPREP, DCPROMO and migrating FSMO roles). Both are Global Catalog servers and host DNS, DHCP and WINS.
We would now like to move to 2008 R2 64bit which I appreciate means a re-install. The hardware side of things is fine.
Ideally I would like to retain the server names (more for documentation and historical reason as well as to hopefully not have to touch Exchange 2003 configuration immediately as we plan to go to 2010 when that is released). My question is this.
Is there any reason not to follow this basic procedure:
1) Migrate any FSMO roles off one of the 2003 R2 DCs (DC2) and remove Global Catalog from it
2) DCPromo it to demote it
3) Remove it from the domain
4) Install 2008 R2 and give server same name as old DC2 and join as member server
5) ADPrep as documented
6) DCPromo to make it a DC
7) Migrate FSMO roles to it and make it a Global Catalog server. Install DNS.
8) Repeat steps except for ADPrep of the first DC. The first server is also a certificate server. Certificate services will be uninstalled and migrated to a 64 bit virtual machine to allow for easier migration in the future.
9) Once both DCs are completed install DHCP and configure using the new Split Scope feature.

Thanks in advance for any advice given.

Darren
[+][-]09/18/09 12:10 AM, ID: 25363417Expert Comment

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[+][-]09/18/09 12:13 AM, ID: 25363433Author Comment

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[+][-]09/18/09 12:30 AM, ID: 25363511Accepted Solution

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About this solution

Zone: Active Directory
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Solution Provided By: mkline71
Participating Experts: 1
Solution Grade: A
 
 
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