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Add a new 2012 R2 forest and migrate from 2003

    Question

  • Dear all,

    i have a 2003 AD (domain and functional level). I want to setup a new 2012 R2 infrastructure (i can't move directly to 2016 from what i read) and gradually move users, computers and servers to the new domain.

    From your experience what is the best path to do this ?

    Thank you.

    Friday, February 3, 2017 11:09 AM

Answers

  • Hi

     Correct you can't directly migrate from server 2003 to server 2016,first you should migrate server 2008 at least.(recommend that server 2012.)then migrate to server 2016(functional level needs to be at least server 2008).

    You can find migration steps on this article;

    http://blogs.msmvps.com/mweber/2012/07/30/upgrading-an-active-directory-domain-from-windows-server-2003-or-windows-server-2003-r2-to-windows-server-2012/

    gradually move users, computers and servers to the new domain. >>> If you mean you need to migrate AD resources to new domain you should configure domain trust between old and new domain then you can migrate AD resources with ADMT.(users,computers,etc..)

    ADMT ; https://technet.microsoft.com/en-us/library/cc974332%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396


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

    • Marked as answer by linuxmc Monday, February 6, 2017 8:26 AM
    Friday, February 3, 2017 11:19 AM
  • Hi,

    Just to clarify that if the forest functional level is 2003, you are able to add new domain controller on Windows 2016:

     for domain controller the functional level needs to be at least 2003, you will get a message when you install the first domain controller on Windows 2016 to inform you that the level 2003 is deprecated , the same for FRS:

    So you can migrate to Windows 2016 directly, once done you should remove DC 2003 to raise the functional to Windows 2008 and migrate FRS to DFS-R  for sysvol replication. 


    Please don't forget to mark the correct answer, to help others who have the same issue. Thameur BOURBITA MCSE | MCSA My Blog : http://bourbitathameur.blogspot.fr/

    • Marked as answer by linuxmc Monday, February 6, 2017 8:26 AM
    Friday, February 3, 2017 12:40 PM

All replies

  • Hi

     Correct you can't directly migrate from server 2003 to server 2016,first you should migrate server 2008 at least.(recommend that server 2012.)then migrate to server 2016(functional level needs to be at least server 2008).

    You can find migration steps on this article;

    http://blogs.msmvps.com/mweber/2012/07/30/upgrading-an-active-directory-domain-from-windows-server-2003-or-windows-server-2003-r2-to-windows-server-2012/

    gradually move users, computers and servers to the new domain. >>> If you mean you need to migrate AD resources to new domain you should configure domain trust between old and new domain then you can migrate AD resources with ADMT.(users,computers,etc..)

    ADMT ; https://technet.microsoft.com/en-us/library/cc974332%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396


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

    • Marked as answer by linuxmc Monday, February 6, 2017 8:26 AM
    Friday, February 3, 2017 11:19 AM
  • Hi,

    Just to clarify that if the forest functional level is 2003, you are able to add new domain controller on Windows 2016:

     for domain controller the functional level needs to be at least 2003, you will get a message when you install the first domain controller on Windows 2016 to inform you that the level 2003 is deprecated , the same for FRS:

    So you can migrate to Windows 2016 directly, once done you should remove DC 2003 to raise the functional to Windows 2008 and migrate FRS to DFS-R  for sysvol replication. 


    Please don't forget to mark the correct answer, to help others who have the same issue. Thameur BOURBITA MCSE | MCSA My Blog : http://bourbitathameur.blogspot.fr/

    • Marked as answer by linuxmc Monday, February 6, 2017 8:26 AM
    Friday, February 3, 2017 12:40 PM