Solved

Domain collapse and reorg

Posted on 2004-08-30
5
244 Views
Last Modified: 2010-03-18
Hello Experts!  I'd like some friendly advice/suggestions on how I should proceed with a domain collapse and reorg.  Here is the situation.   We were a smaller company (we will call it Alpha Company for the sake of this post) that was bought out by a larger company (Bravo Company).  Alpaha Comany consists of one corporate office and 9 other satallite offices.  There is at least one Windows 2000 domain controller at each office.  Alpha Corporate has 2 DCs.  

When Bravo Company bought us out we went though a migration phase from Domain Alpha to Domain Bravo.  Bravo Domain is much larger than Alpha Domain with multiplie sites all over the USA.  After placing temporary Bravo Domain DCs (all Windows 2003) at each site next to the Alpha Domain DCs (all Windows 2000) , we used a tool called Aelita Domain Migration Wizard 6.0 that moved all our groups and users from Alpha Domain to Bravo domain.  

Our plan now is to collapse Alpha Domain.  Since the existing Bravo Domain servers are only temporary, we would like to move their services to the old Alpha Domain DCs after the Alpha Domain collapse.  Some of our Alpha Domain servers still run services such as DHCP, WINS, and DNS, and printing that will have to be moved to the Bravo Domain DCs before we can collapse Alpha Domain.

Once all services are moved to the temp Bravo Domain servers, what would be the best way to collapse the Alpha Domain and eventually move the temp Bravo Domain servers and services over to the old Alpha Domain servers?  Thanks for all the suggestions in advance.
0
Comment
Question by:mb2010
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 23

Expert Comment

by:rhandels
ID: 11934151
Hi,

Here's my opinion.

If you only have one domain, than you will only have 1 server in the corporate office (i guess) that holds the FSMO roles. Here's a good link on how to migrate them

http://www.jsiinc.com/SUBL/tip5500/rh5574.htm

Then, i would make sure to add DNS, WINS, DHCP and all other stuff to the Bravo DC (because this domain needs to be the production domain). Then, do a dcpromo on the Alpha machines, which makes DC's into member servers. Then, add it to the new domain and make sure to transfer the DNS, WINS and DHCP services.

To be honest with you, this is just the small tip and advice. There are more things to take into consideration, e.g. IP plan (which ip addresses do you use and do you need to use), how fast would you like to migrate (use the big bang or plan ahead), how is DNS set up (are all DC's DNS servers?? Are there primary and secondary DNS servers??). So as you can see, the answer isn't quite that easy..
0
 

Author Comment

by:mb2010
ID: 11946045
Here is what I am thinking.

1) Gather Domain Controller roles.

2) Move Alpha Domain roles (ie: WINS, DNS, DHCP, etc.) to our Bravo Domain servers.

3) Collapse Alpha Domain.

4) Rebuild old domain controller Alpha Domain servers and make new Domain Bravo domain controller servers.

5) Move existing services/roles on existing temporary Bravo Domain machines to newly built Bravo Domain controllers that were once Alpha domain controllers.
0
 
LVL 23

Expert Comment

by:rhandels
ID: 11949784
Hi mb2010,

That's what i should do to. That's the way to go. But you don't need to rebuild the server. Just do a dcpromo to make it a member server and then do a dcpromo...
0
 

Author Comment

by:mb2010
ID: 11953844
Well... The new Alpha servers (currently Windows 2000) will eventually be Windows 2003.  Does it make more since to demote with dcpromo and then run the upgrade to to Windows 2003 and dcpromo again to new Bravo domain, or does it make more sense to run a clean install of Windows 2003?
0
 
LVL 23

Accepted Solution

by:
rhandels earned 300 total points
ID: 11960771
Hi,

Might be an idea. You could also do a fresh install if you think this is better for the server (might be a good idea if you don't need it)..
0

Featured Post

What Is Transaction Monitoring and who needs it?

Synthetic Transaction Monitoring that you need for the day to day, which ensures your business website keeps running optimally, and that there is no downtime to impact your customer experience.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The Need In an Active Directory enviroment, the PDC emulator provide time synchronization for the domain. This is important since Active Directory uses Kerberos for authentication.  By default, if the time difference between systems is off by more …
We recently endured a series of broadcast storms that caused our ISP to shut us down for brief periods of time. After going through a multitude of tests, we determined that the issue was related to Intel NIC drivers on some new HP desktop computers …
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question