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Decom Exchange 2007 after 2013 Upgrade RRS feed

  • Question

  • Exchange Resource forest (EX-Forest) and separate user forests (SiteAForest, SiteBForest and SiteCForest)

    Site A:

    1.        One Exchange 2007 HUB/CAS, One Exchange DB server
    2.        Four Exchange 2013 HUB/CAS/DB servers

    All mailboxes, Conf Rms, public folders have been migrated

    DLs/Groups upgraded to v15

    Site B:

    1.        One Exchange 2007 HUB/CAS, One Exchange DB server

    All objects still on 2007 (Migration coming soon)

    Site C:

    1.        One Exchange 2007 HUB/CAS, One Exchange DB server

    All objects still on 2007 (Migration coming soon)

    All of Exchange routes through Site A, redirects point to 2007.

    Question:

    Since we have migrated all Exchange objects off Exchange 2007 in Site A, we now want to decom Exchange 2007 in Site A.  However, it appears some or all of the virtual directories may need reconfigured to make Site B or Site C the ‘Temporary Primary’ site for 2007.  I see lots of articles detailing how to decom 2007, in a specific order.  However, what I’ve found assumes you are doing a ‘big-bang’ type migration instead of site-by-site, migrate one-at-a-time/decom one-at-a-time – which is what we’re doing.  We don’t care about external access for the remaining 2007 users (Site A has external access via 2013), just redirecting internal 2007 users through a different site than Site A.  Is it as simple as reconfiguring the virtual directories to redirect to a server(s) in a different site?  Anything else I’m missing?

    Monday, January 8, 2018 7:03 PM

All replies

  • Hi,

    From your description, I want to confirm whether it's a cross-forest Exchange environment or resource Exchange environment.
    Exchange resource forest environment has two forest, one for Exchange server, and others for user account.

    In your current situation, there're 3 AD sites in one Exchange forest. Then, you want to move all mailboxes from Site A to other site, and decommission Exchange server in Site A.

    If all Exchange objects (including mailbox, public folder, OAB generation server and others) have been moved to other server, we can uninstall this server from Exchange environment.
    More information, refer to: How to remove Exchange 2007 from a computer

    The client connection request will connect to Exchange server which hosts his mailbox, it's fine if the network connection is valid between each site.

    If you want to configure redirect, we need specify external URL for client access.
    More details about it, for your reference: Understanding Proxying and Redirection


    Moreover, Exchange 2007 is out of support on April 11, 2017, please upgrade it to Exchange 2013 or later.

    Regards,
    Allen Wang


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    Tuesday, January 9, 2018 9:42 AM
    Moderator
  • Hi,

    Do you get the answer for your question?
    If there is anything else we can do for you, please feel free to post in the forum.

    Regards,
    Allen Wang


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Monday, January 15, 2018 1:42 PM
    Moderator