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Removing Domain Controller 2008 R2 with DHCP

    Question

  • Hello , 

    we decide to kill a physical server because is out of maintenance . this server is a domain controller without FSMO and it's DHCP 

    we have two domain controllers 2012 R2 that contain the FSMO Roles .

    if i remove the domain controller in the physical server , is there an impact to my DHCP services   ?

    what will be better , migrate first DHCP and remove the DC or remove the DC then migrate DHCP ?

    FYI : we manage this server remotely and the server without Ilo card  and there is no IT guy in Client Site .

    thank you for your recommandations  

    Regards

    Tuesday, March 7, 2017 9:58 AM

Answers

  • Hi , 

    i think i have to follow this  link :

    https://blogs.technet.microsoft.com/teamdhcp/2012/09/10/migrating-existing-dhcp-server-deployment-to-windows-server-2012-dhcp-failover/

    Regards

    • Marked as answer by azuriste Tuesday, March 7, 2017 4:28 PM
    Tuesday, March 7, 2017 3:50 PM
  • Yes - that should work

    hth
    Marcin

    • Marked as answer by azuriste Tuesday, March 7, 2017 4:28 PM
    Tuesday, March 7, 2017 4:23 PM
  • Hi , 

    i think i have to follow this  link :

    https://blogs.technet.microsoft.com/teamdhcp/2012/09/10/migrating-existing-dhcp-server-deployment-to-windows-server-2012-dhcp-failover/

    Regards


    Same thing which i suggest you and same steps which i provide in my previous post.

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by azuriste Wednesday, March 8, 2017 1:18 PM
    Tuesday, March 7, 2017 7:36 PM

All replies

  • Hi

     The better way migrate dhcp service to a member server also configure failover cluster dhcp with 2 node(with server 2012 OS).

    Article for migrate dhcp; https://technet.microsoft.com/en-us/library/dd759224(v=ws.11).aspx

    Configure DHCP for Failover ; https://technet.microsoft.com/en-us/library/hh831385(v=ws.11).aspx


    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    Tuesday, March 7, 2017 10:10 AM
  • Migrate the DHCP server first. As far as DHCP is concerned, the failover cluster might be  a bit of an overkill. My suggestion would be to use DHCP failover without failover clustering. Starting with Windows Server 2012-based DHCP, you have this option - details at https://technet.microsoft.com/en-us/library/hh831385(v=ws.11).aspx

    hth
    Marcin

    Tuesday, March 7, 2017 12:21 PM
  • Hello ,

    @Marcin :  If i got you , so i create  a relationship with 2012 R2 DHCP  and DHCP 2008 R2  and then i kill the 2008 R2 DHCP server  !

    Regards

    Tuesday, March 7, 2017 3:31 PM
  • Unfortunately you can not use the failover configuration described in https://technet.microsoft.com/en-us/library/hh831385%28v=ws.11%29.aspx when using a Windows Server 2008 R2-based DHCP.

    You will still need to go through a migration process from a Windows Server 2008 R2 to Windows Server 2012 R2 (or newer) DHCP. However, at that point, to provide high-availability and disaster recovery for your DHCP implementation, you don't have to rely on Failover Clustering but instead use the DHCP failover described in the article referenced above

    hth
    Marcin

    Tuesday, March 7, 2017 3:37 PM
  • Hi , 

    i think i have to follow this  link :

    https://blogs.technet.microsoft.com/teamdhcp/2012/09/10/migrating-existing-dhcp-server-deployment-to-windows-server-2012-dhcp-failover/

    Regards

    • Marked as answer by azuriste Tuesday, March 7, 2017 4:28 PM
    Tuesday, March 7, 2017 3:50 PM
  • Yes - that should work

    hth
    Marcin

    • Marked as answer by azuriste Tuesday, March 7, 2017 4:28 PM
    Tuesday, March 7, 2017 4:23 PM
  • Hi , 

    i think i have to follow this  link :

    https://blogs.technet.microsoft.com/teamdhcp/2012/09/10/migrating-existing-dhcp-server-deployment-to-windows-server-2012-dhcp-failover/

    Regards


    Same thing which i suggest you and same steps which i provide in my previous post.

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by azuriste Wednesday, March 8, 2017 1:18 PM
    Tuesday, March 7, 2017 7:36 PM