Demotion of 2003 domain controller

Posted on 2006-10-20
Medium Priority
Last Modified: 2010-04-18
Hey experts,  
I have a Domain controllerthat the guy before me installed with exchange on it.  I wanted to install another server to act as the DC so that our email and DC are on seperate systems.  Is there any issues I need to look out for and is it weven possible to demote with exchange on this server?  I already promoted the new server to a DC and it replicated AD already and I transfered my DHCP scope to the new box too, but eventually I want the new box to be the primary DC and the old one to be just a DC.  What are my options?
Question by:oldskool75
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
  • 4
  • 2
  • 2
LVL 85

Accepted Solution

oBdA earned 1000 total points
ID: 17776242
Do NOT demote a DC running Exchange, this will break Exchange.
Overview of operating system and Active Directory requirements for Exchange Server 2003

Exchange Server 2003 and Domain Controllers - A Summary

Assuming (considering your question title) that you actually want the old one to be "just an Exchange server" (and not "the old one to be just a DC" as you've actually written), there's not much you can do except a full backup of your Exchange, uninstall Exchange, demote the machine, reinstall Exchange, restore Exchange.
If you want the old one indeed to "be just a DC", then just uninstall Exchange ...

Author Comment

ID: 17804949
hey there thanks for the response and sorry for my late reply, I have been out of town.  I want the"old server", which is the current PDC, to just have exchange on it.  I installed a new server which I want to handle the responsibility of PDC and still have the old server as a DC for replication of AD.  If I uninstall exchange and reinstall it how do I keep the same information store DB?
LVL 85

Expert Comment

ID: 17807361
Sorry, that I can't answer reliably; you might want to ask a question (or a pointer to this one) in the Exchange TA (http://www.experts-exchange.com/Networking/Email_Groupware/Exchange_Server/).
Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.


Expert Comment

ID: 17808133
It sounds like what you're looking to do is add an additonal domain controller, then have it Host the global catalog.. you can then seize the various roles of Active Directory using NTDSUTIL.



What i'm not sure on is what roles you want to seize so you don't mess up exchange.

Hope that helps.


Expert Comment

ID: 17808161
To add on to my last post..

After reviewing the 2nd link.. it seems that the proper course of action is to make your new DC host the global catalog..
Then give it time to propigate the GC to your new DC.

After the global catalog has propigated you can transfer/seize all 5 AD roles using NTDSUTIL


Author Comment

ID: 17808432
Wow I don't remember reading this in any microsoft books.... crazy....  so the most important thing that I am worryed about is exchange.....  I want to make sure that in the end the worst case scenerio is I have reinstall and remount the information store....  will moving the FSMO roles make this less painless.  

Assisted Solution

jspaziano earned 1000 total points
ID: 17810840
Make sure you do a transfer instead of a seize since your old DC will still be online.
I don't think that making your new DC a global catalog server then transferring the FSMO roles will effect exchange at all.


Expert Comment

ID: 17810896
To add on to my last post.. you'll want to leave exchange on your existing exchange server.
This scenario is much easier to do since you want to leave your exchange server as a backup DC.

Let me know how it goes.
i'm going to need to do the same thing in a few weeks transitioning from Small Business Server 2003 to two servers, moving the PDC role to a new Windows 2003 server while leaving my old DC as a backup domain controller/exchange server.


Featured Post

Prepare for your VMware VCP6-DCV exam.

Josh Coen and Jason Langer have prepared the latest edition of VCP study guide. Both authors have been working in the IT field for more than a decade, and both hold VMware certifications. This 163-page guide covers all 10 of the exam blueprint sections.

Question has a verified solution.

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

A quick step-by-step overview of installing and configuring Carbonite Server Backup.
Learn about cloud computing and its benefits for small business owners.
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…

719 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