RE: upgrading/migrating 2000 domain to 2003


Hi Gaute,

Thanks for posting!

---I wonder, is it possible to install a third machine with windows
2003,make it a member of the existing windows 2000 domain, perform a
promotion and point the FSMO-roles to this server and then upgrade the rest
of the AD-controllers?

Right, your plan is the exact method which we recommend to perform. This is
not in place upgrade. I would like to provide you with the below
information for your reference:

Performing a "not in place" upgrade:
============================================

1. Run Adprep /forestprep, Adprep /domainprep on win2k DC.

2. Install win2k3 on your new machine and join it to the win2k domain.

3. Promote win2k3 to be an additional DC. This process will replicate
user/computer accounts from 2k to 2k3.

4. Install AD-integrated DNS on 2k3, this process will auto replicate DNS
from 2k to 2k3.

5. Move Global Catalog to the new server.

6. Switch FSMO Roles to the new server.

7. Add DHCP role to the new server.

Please refer to the following KB:

130642 How to Move a DHCP Database to Another Windows Server
http://support.microsoft.com/?id=130642

8. Run for a test period and make sure everything is OK.

9. Demote the win2k DC and make a clean install of win2k3. Promote it to be
an additional DC.

The additional DC in a domain can offer fault tolerance and ensure the
single DC is not overloaded.

The following are some helpful documents for upgrading from Windows 2000 to
Windows Server 2003:

325379 How to Upgrade Windows 2000 Domain Controllers to Windows Server 2003
http://support.microsoft.com/?id=325379

Upgrading from Windows 2000 Server to Windows Server 2003
http://www.microsoft.com/windowsserver2003/upgrading/w2k/default.mspx

Upgrading from Windows 2000 Server to Windows Server 2003
http://www.microsoft.com/windowsserver2003/evaluation/whyupgrade/win2k/w2kto
ws03-2.mspx

If there is anything that is unclear, please feel free to let me know.

Thanks & Regards,

Jason Tan

Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

=====================================================

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