Replacing 2000 DC, best way

I want to replace our existing 2000 DC with a new Dell server.    I can make that server either 2000 or 2003, I eventually want to make it 2003 but didn't know if it would be easier to add it as a 2000 server and make it a DC along with the current 2000 DC and then upgrade the new server to 2003.   The reason, I was thinking this was to keep the current 2000 DC just the way it is if I had to back out of the upgade.   What would be the best way to do this.   I have read several post to just add the new server as a 2003 member server and then I am a little confused as to where to go from there.  I am a little familiar with this but am not a server person by any means, more on the networkng side of things.   We have previously tried to upgrade the existing 2000 DC to 2003 and it crapped out in the middle of the install and got into a reboot loop.  We had to wipe the DC and start from scratch and restore everything from a backup.  We are looking to avoid this issue completely by using a new server.  
mwhite16Asked:
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MasterArtisanCommented:
I would have the new 2003 server and copy over the domain structure, then turn off the 2000 server and escalate the 2003 to native mode.
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mwhite16Author Commented:
without sounding to stupid, how do I go about doing that?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
I disagree - a native mode 2003 domain is not all that important to most small businesses at this point and having a second domain controller would provide a level of redundancy.  So I'd keep the 2000 server.

You would add the 2003 as a member server just like you add any other system to the network.  THEN, you need to start the process of upgrading to a 2003 Active Directory Domain (this does NOT necessarily involve upgrading the 2000 server, but by adding a 2003 DC, you ARE upgrading the DOMAIN).  

I have several links for helping you do this - just note, some of them may not apply if you choose to keep the 2000 server as a 2000 server and not upgrade it (which is fine).


Common Mistakes When Upgrading a Windows 2000 Domain To a Windows 2003 Domain
http://support.microsoft.com/default.aspx?scid=kb;en-us;555040

How to upgrade Windows 2000 domain controllers to Windows Server 2003
http://support.microsoft.com/kb/325379

[If using R2 release of Windows 2003] Extending Your Active Directory Schema for New Features in Windows Server 2003 R2
http://www.microsoft.com/downloads/details.aspx?familyid=5B73CF03-84DD-480F-98F9-526EC09E9BA8&displaylang=en

Hotfixes to install before you run adprep /Forestprep on a Windows 2000 domain controller to prepare the Forest and domains for the addition of Windows Server 2003-based domain controllers
http://support.microsoft.com/?kbid=331161

Commodore.ca | Windows | How To Upgrade Windows 2000 Domain to Windows 2003 Server
Quote from the top of this article: "Several glossy Microsoft presenters have stated that all you need to do to complete a Windows 2003 Domain upgrade is run ADPREP and then upgrade away.  This may work for very small / simple environments but it is definitely not good advice for most companies.  After upgrading five servers in two unrelated domains and installing many fresh copies of 2003 I can say that I personally would not skip a single step in the process I have developed below."
http://www.commodore.ca/windows/windows_2003_upgrade.htm

Windows Server 2003 Upgrade Assistance Center
http://www.microsoft.com/windowsserver2003/upgrading/nt4/upgradeassistance/default.mspx


Here are some links that should help you in replacing existing domain controllers and/or transferring services and Active Directory functions to another/new system:

How can I transfer some or all of the FSMO Roles from one DC to another?
http://www.petri.co.il/transferring_fsmo_roles.htm

How To Create or Move a Global Catalog in Windows 2000
http://support.microsoft.com/?kbid=313994

How to move a DHCP database from a computer that is running Windows NT Server 4.0, Windows 2000, or Windows Server 2003 to a computer that is running Windows Server 2003
http://support.microsoft.com/?id=325473

How can I move a DHCP database from one server to another?
http://www.windowsitpro.com/Article/ArticleID/13473/13473.html

How can I move DNS from one Windows 2000 Server to another Windows 2000 Server?
(Two Related if going 2000 to 2003 - read both before moving)
http://www.jsifaq.com/subG/TIP3300/rh3357.htm
http://www.jsifaq.com/SUBN/tip6700/rh6731.htm


Exchange Considerations:
[If you run Exchange 2000] Windows Server 2003 adprep /forestprep Command Causes Mangled Attributes in Windows 2000 Forests That Contain Exchange 2000 Servers
http://support.microsoft.com/default.aspx?kbid=314649



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