NT4 to 2003 : Can we keep NT4 and exchange 5.5 for a while ?

Discussion in 'Server Migration' started by Vincent Schmid, Dec 4, 2004.

  1. Hello,

    We curently have a primary NT4 controller running exchange server 5.5.
    We plan to upgrade to windows 2003 and exchange 2003.

    In order to make things slowly one after the other, is it possible to
    set up a new domain controller (new machine) with windows 2003 and keep
    the old server running NT4 and exchange 5.5 for a while ?

    This is what we plan to do, assuming that the current PDC is machine A :

    1) Install a fresh NT4 BDC on machine B
    2) Promote B tp PDC
    3) Upgrade B to Windows 2003
    4) Install a fresh Windows 2003 on the new machine C
    5) Synchronise C with B
    6) Discard machine B

    7) Keep going a while with exchange server 5.5 still on machine A (NT4),
    until we know that C is configured ok and works well (we will not modify
    any user account settings during this time).

    8) Upgrade A to Windows 2003 and Exchange 2003

    Does this sequence seem reasonable ? Can we keep compatibility with the
    old server ?

    Thanks in advance,
    Best regards,
    Vincent
     
    Vincent Schmid, Dec 4, 2004
    #1
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  2. Hi Vincent,

    Your plan seems very good.

    A very important cent need to pay attention is the domain/forest function
    level.

    When you upgrade to win2k3 on machine B, please set the domain and the
    forest function level to Interim, otherwise, the old NT server cannot
    communicate with win2k3 server.

    More information can be found:

    Enabling Windows Server 2003 Functional Levels in a Windows NT 4.0
    Environment
    http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/deploy
    guide/en-us/Default.asp?url=/resources/documentation/windowsserv/2003/all/de
    ployguide/en-us/dssbk_pfl_caht.asp

    How To Raise Domain and Forest Functional Levels in Windows Server 2003
    http://support.microsoft.com/default.aspx?scid=kb;en-us;322692


    In addition, don't forest to transfer FSMO from machine B to C before you
    discard B. :)

    Any update, let us get in touch!


    Best regards,

    Rebecca Chen

    MCSE2000 MCDBA CCNA


    Microsoft Online Partner Support
    Get Secure! - www.microsoft.com/security

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    --------------------
     
    Rebecca Chen [MSFT], Dec 6, 2004
    #2
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  3. --SNIP--

    Rebecca,
    Thanks to your informations everything should go fine ! The migration
    should take place very soon.

    Many thanks for your help,
    Sincerely,
    Vincent Schmid
     
    Vincent Schmid, Dec 7, 2004
    #3
  4. You are welcome!

    Further questions, let us get in touch! :)

    Best regards,

    Rebecca Chen

    MCSE2000 MCDBA CCNA


    Microsoft Online Partner Support
    Get Secure! - www.microsoft.com/security

    =====================================================

    When responding to posts, please "Reply to Group" via your newsreader so
    that others may learn and benefit from your issue.

    =====================================================
    This posting is provided "AS IS" with no warranties, and confers no rights.
     
    Rebecca Chen [MSFT], Dec 8, 2004
    #4
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