Sign in
 
HomeWindows Server 2012Windows Server 2008 R2Windows Server 2003LibraryForums
Windows Server TechCenter >
> 
> 
Any known issues with adding a 2008R2 DC to a Win2008 domain?

Answered Any known issues with adding a 2008R2 DC to a Win2008 domain?

  • Friday, May 04, 2012 1:56 PM
     
     
    Sign In to Vote
    0
    Hello MS Gurus, I am hoping to get an answer to my question. I have seen a lot of questions that are SIMILAR to mine but nothing that quite hits on what I am concerned with. We have a multi-domain, multi-homed forest with over 150,000 AD objects. The domain functional level is currently set to Windows 2008 but we recently had to replace a DC that failed. The old DC was Win2k8 and the new DC is 2k8R2. We know that the schema has to be modified and that has already been done. What we are concerned with is what impacts running ADPrep will have considering we are NOT ready to move to 2k8R2 Functional Level. Has anyone else performed this adprep without changing the functional level? If so, what results did you have? Please respond as soon as you can as we are at a barricade until we know for sure what this will do.
     

All Replies

  • Friday, May 04, 2012 1:59 PM
     
     Answered
    Sign In to Vote
    0
    Hello MS Gurus, I am hoping to get an answer to my question. I have seen a lot of questions that are SIMILAR to mine but nothing that quite hits on what I am concerned with. We have a multi-domain, multi-homed forest with over 150,000 AD objects. The domain functional level is currently set to Windows 2008 but we recently had to replace a DC that failed. The old DC was Win2k8 and the new DC is 2k8R2. We know that the schema has to be modified and that has already been done. What we are concerned with is what impacts running ADPrep will have considering we are NOT ready to move to 2k8R2 Functional Level. Has anyone else performed this adprep without changing the functional level? If so, what results did you have? Please respond as soon as you can as we are at a barricade until we know for sure what this will do.

    Hello,

    There is no problem with that. Just make sure that your applications based on AD use supports working with your new 2008 R2 DC.

    To upgrade to AD DS 2008 R2: http://technet.microsoft.com/en-us/library/cc731188%28v=ws.10%29.aspx

    This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.   

    Microsoft Student Partner 2010 / 2011
    Microsoft Certified Professional
    Microsoft Certified Systems Administrator: Security
    Microsoft Certified Systems Engineer: Security
    Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration
    Microsoft Certified Technology Specialist: Windows 7, Configuring
    Microsoft Certified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations
    Microsoft Certified IT Professional: Enterprise Administrator
    Microsoft Certified IT Professional: Server Administrator
    Microsoft Certified Trainer

     
  • Friday, May 04, 2012 2:03 PM
     
     
    Sign In to Vote
    0
    No that isn´t a problem.

    Kind regards,

    Tim
    MCITP, MCTS
    http://directoryadmin.blogspot.com

    This posting is provided 'AS IS' with no warranties or guarantees and confers no rights.

     
  • Friday, May 04, 2012 2:14 PM
    Moderator
     
     Proposed
    Sign In to Vote
    0

    I have run schema extensions on a 2003 DFL/FFL domains with 2008 R2 dc's w/o issue.

    --
    Paul Bergson
    MVP - Directory Services
    MCITP: Enterprise Administrator
    MCTS, MCT, MCSE, MCSA, Security+, BS CSci
    2008, Vista, 2003, 2000 (Early Achiever), NT4
    http://www.pbbergs.com    Twitter @pbbergs
    http://blogs.dirteam.com/blogs/paulbergson

    Please no e-mails, any questions should be posted in the NewsGroup. This posting is provided "AS IS" with no warranties, and confers no rights.

    • Proposed As Answer by Mr XMVP Friday, May 04, 2012 2:28 PM
    •  
     
  • Friday, May 04, 2012 5:18 PM
     
     
    Sign In to Vote
    0

    Hello,

    this is working fine and fully supported from Microsoft. Be aware that replication will take a while until all DCs are updated, so assure this BEFORE promoting the new OS DC.

    Best regards

    Meinolf Weber
    MVP, MCP, MCTS
    Microsoft MVP - Directory Services
    My Blog: http://msmvps.com/blogs/mweber/

    Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.

     
  • Saturday, May 05, 2012 6:03 AM
     
     
    Sign In to Vote
    0
    There is no known issue in preparing domain for Windows 2008 R2 with adprep in Win2008 domain.However I would recommend to take the backup of server before you proceed.You can raise the  Forest and Domain Functional Levels to Win2008R2 if all the DC is Win2008R2 this should not be the issue unless and until you have lower version OS DC(like win2008/2003 etc).

    Upgrading Active Directory Domains to Windows Server 2008 and Windows Server 2008 R2 AD DS Domains
    http://technet.microsoft.com/en-us/library/cc731188(WS.10).aspx

    Just for your info you can revert back or lower the Active Directory Forest and Domain Functional Levels in Windows Server 2008 R2.If you have not enabled AD recycle bin.
    http://social.technet.microsoft.com/wiki/contents/articles/how-to-revert-back-or-lower-the-active-directory-forest-and-domain-functional-levels-in-windows-server-2008-r2.aspx

    Hope this helps

    Best Regards,

    Sandesh Dubey.

    MCSE|MCSA:Messaging|MCTS|MCITP:Enterprise Adminitrator | My Blog

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

     
  • Saturday, May 05, 2012 8:25 AM
    Moderator
     
     
    Sign In to Vote
    0

    I have been part of numerous large organization where there is a mix of windows 2003/2008/2008 R2 is running without any major issue until you are running some legacy application which is not compatible with 64bit architecture or enhanced security in windows 2008 R2. Still, i have seen organization is rolling out windows 2008 R2 to utilize the major enhancements like.

    How Microsoft IT Leverages Security Enhancements from Windows Server 2008 R2  http://technet.microsoft.com/en-gb/library/gg452697.aspx

    Known Issues with Windows Server 2008 R2  http://technet.microsoft.com/en-us/library/ee516806%28v=ws.10%29.aspx

    Awinish Vishwakarma - MVP - Directory Services

    My Blog: awinish.wordpress.com

    Disclaimer This posting is provided AS-IS with no warranties/guarantees and confers no rights.