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Moving primary W2K DC to a new machine

Posted on 2006-04-17
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Last Modified: 2010-04-13
I have two W2K DC's in a child domain, one is primary - containing DHCP, DNS, GC and the other is GC / Active dir only.  The primary DC is aging and I want to purchase a new server.  Is it best to purchase a new server, name it something else, promote to DC with DNS and DHCP then demote the old primary server, or is it better to send the server roles (DNS, DHCP) to the current secondary machine, demote the current primary and then purchase the new server and promote it?  I don't think I can call it the same computer name but that should be ok.   Would Schema still work properly?
I would also like the new server to be Windows 2003 if possible.  Thanks for any suggestions
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Question by:chitchcock
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Jay_Jay70 earned 2000 total points
ID: 16468925
Hi chitchcock,

can be done quite easily with a clean install of the new server

below are my standard install steps, however if this is your first win2k3 server in the network you are going to need to extend the schema prior to doing the following
http://www.petri.co.il/windows_2003_adprep.htm

An additional not, if you are adding a 2003 R2 DC, then you will need to run the adprep tools from the second disk in the package


1) Promote your new machine as an additional domain controller in an already existing domain - this will allow AD to replicate to the new server
2) Make sure DNS is AD integrated on your old DC to allow all DNS replications also
3) Transfer the FSMO roles to the new server
http://www.petri.co.il/transferring_fsmo_roles.htm
http://support.microsoft.com/default.aspx?scid=kb;en-us;255690
4) Make the new DC a Global Catalog under Sites and Services
5) Deactivate DHCP on the old DC (if used) and recreate the scope on the new DC
6) Run DCDIAG to make sure all is well and replication is fine
7) Demote the old DC if you dont intend to keep it as a backup
8) Recreate Shares etc on the new server
9) Reinstall printers and share them etc....

this will allow you to have the complete AD directory on the new DC and clients will barely be aware of any changes

If you get stuck just post

Cheers!
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by:chitchcock
ID: 16469280
Thanks for your help Jay Jay70.  
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by:Jay_Jay70
ID: 16474068
no worries :)
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