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Demote 2003 Domain controller running with Exchange 2007 RRS feed

  • Question

  • Hi All,

    In one of My child Domain i have 2 DC's running with GC, DNS servers. In that One DC Running as a DC & EXchnage 2007 server itself. I want to Demote the DC function alone and let exchange server running on that server.

    As per my understanding before demote AD i need migrate the Exchnage functuion to another server? or Simply i can demote the DC using Dcpromo command.

    Pls let me know the Procedure to do this task with less impact.

    Monday, November 15, 2010 10:14 AM

Answers

  • Hello,

    to demote the DC Exchange MUST be moved to another machine and uninstalled from the domain controller. That's one of the reason not to install Exchange on a domain controller.

    So install an additional member server with Exchange 2007 and all latest updates. Then move the mailboxes to the new installed one and remove Exchange after you have verified that all is still working.

    See here for starting:

    http://social.technet.microsoft.com/forums/en-US/exchangesvrgeneral/thread/dfeb9298-3181-471a-8f1c-bab1e864e2e5

    http://www.msexchange.org/tutorials/Moving-Exchange-Server-2007-database-Mailbox-servers.html


    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
    • Proposed as answer by pbbergs [MSFT] Monday, November 22, 2010 12:57 PM
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 11:21 AM
  • Hello,

    demoting a domain controller with exchange installed may work BUT IS NOT SUPPORTED FROM MICROSOFT.

    So for future planning, install additional Exchange in the domain, move the mailboxes, test the new Exchange, if all tests are succesful uninstall Exchange from the domain controller and then demote the DC.


    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 12:21 PM
  • As Meinolf mentioned, it is not recommended to perform DCPROMO up or down on an Exchange server.  So my recommendation is to install a new server in the same EX org and move mailboxes.    This option is much “safer” than performing a DCPROMO on the EX server. 

     

    What is your customer’s concern?  Do you have connectors on this server?


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX

    Blogs - http://blogs.sivarajan.com/
    Articles - http://www.sivarajan.com/publications.html
    Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara

    This posting is provided AS IS with no warranties, and confers no rights.
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 5:35 PM

All replies

  • Hello,

    to demote the DC Exchange MUST be moved to another machine and uninstalled from the domain controller. That's one of the reason not to install Exchange on a domain controller.

    So install an additional member server with Exchange 2007 and all latest updates. Then move the mailboxes to the new installed one and remove Exchange after you have verified that all is still working.

    See here for starting:

    http://social.technet.microsoft.com/forums/en-US/exchangesvrgeneral/thread/dfeb9298-3181-471a-8f1c-bab1e864e2e5

    http://www.msexchange.org/tutorials/Moving-Exchange-Server-2007-database-Mailbox-servers.html


    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
    • Proposed as answer by pbbergs [MSFT] Monday, November 22, 2010 12:57 PM
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 11:21 AM
  • Hi Meinolf Weber,

    Thanks for the update. So as per your reply  i understand without unistall or migrate Exchange we cant demote that Domain controller right? or can we do like this? [ I never Did before hence i'm asking this]

    Backup the existing Exchange server 2007

    Demote the DC [with exchnage realted errors or warnings] & dsiconnect that server from network

    Restore the Exchange Backup to New Server.

    Monday, November 15, 2010 12:07 PM
  • Hello,

    demoting a domain controller with exchange installed may work BUT IS NOT SUPPORTED FROM MICROSOFT.

    So for future planning, install additional Exchange in the domain, move the mailboxes, test the new Exchange, if all tests are succesful uninstall Exchange from the domain controller and then demote the DC.


    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 12:21 PM
  • Hi

    Thanks for the swift reply.. Customer have some concerns migrating the Exchange to another box and they want to use the same name without DC function howver i'll check for teh migration and update you.

    Monday, November 15, 2010 12:25 PM
  • As Meinolf mentioned, it is not recommended to perform DCPROMO up or down on an Exchange server.  So my recommendation is to install a new server in the same EX org and move mailboxes.    This option is much “safer” than performing a DCPROMO on the EX server. 

     

    What is your customer’s concern?  Do you have connectors on this server?


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX

    Blogs - http://blogs.sivarajan.com/
    Articles - http://www.sivarajan.com/publications.html
    Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara

    This posting is provided AS IS with no warranties, and confers no rights.
    • Marked as answer by Bruce-Liu Friday, December 3, 2010 1:02 PM
    Monday, November 15, 2010 5:35 PM
  • Any update on the issue?  Please let us know if you need more info. 


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX

    Blogs - http://blogs.sivarajan.com/
    Articles - http://www.sivarajan.com/publications.html
    Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara

    This posting is provided AS IS with no warranties, and confers no rights.
    Sunday, November 21, 2010 5:53 PM
  • As per http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/68a3f7d3-ee55-42c9-973a-81c55c30a655/ both Meinolf and Santosh are correct (note that this particular thread is from Exchange forum - so you have confirmation on this from both DS and Exchange MVPs)

    hth
    Marcin

    Sunday, November 21, 2010 7:45 PM
  • Hello,

    Forgive me for updating this old post, But I faced this issue today and I hope my post helps someone:

    1- One of our customers was running exchange 2007 SP1 on an additional DC and someone already run DCpromo on the exchange

        machine to demote AD on this machuine to be member server.

    2- after this process exchange broken and services can't be started.

    3- to solve this we promoted the exchange machine as a domain controller again but still services can't be started.

    4- eXchange was running SP1 so we applied eXchange 2007 SP3 and it solved all services issues.

    5- I think also if we leave it as member server and apply SP3 it will sove the issue and your exchange becomes on a member server

        (I hope this, I didn't try with the customer.)

    BR.

    Ahmed Badr

    Senior Infrastructure consultant

    http://www.gbrands.com/

     

     

    • Proposed as answer by abadr Sunday, December 25, 2011 8:51 PM
    Sunday, December 25, 2011 8:51 PM