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Migration approach from Exchange 2010 to Exchange 2019 RRS feed

  • Question

  • Dear all,

        It has an environment which Single Exchange 2010 server, boss would like to upgrade into Exchange 2019.

    I read article that that it is required to upgrade into Exchange 2016, then to exchange 2019 with DAG.

    Does it mean that it is required to perform:

    1. Install Exchange 2016 into Exchange 2010 co-exist environment

    2. All information migrate to Exchange 2016, then decommission of exchange 2010 server

    3. After the environment upgrade to pure Exchange 2016 environment, change the AD forest and function level to at least Windows Server 2012R2.

    4. Install Exchange 2019 into Exchange 2016 environment

    5. Enable Exchange 2019 with DAG function

    6. After all information migrate to Exchange 2019, then decommission of exchange 2016 server.

    Is it a correct step ? Any possible method to co-exist Exchange 2010, Exchange 2016 & Exchange 2019 together, such that the mailbox migration can be done instead of perform 2 time of decommission?

    Any related information for similar approach ?

    Regards,

    Joe Tam

    Wednesday, May 8, 2019 9:19 AM

Answers

  • Hi Joe Tam,

    I am writing here to confirm with you how thing going now?

    If the above suggestion helps, please be free to mark it as an answer for helping more people.

    Regards,

    Kyle Xu


    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.

    • Marked as answer by Joe Tam Monday, June 24, 2019 2:38 AM
    Tuesday, May 14, 2019 9:26 AM

All replies

  • Hi Joe Tam,

    Those steps are correct. The reason about why we should migrate mailboxes to Exchange 2016 first is that Exchange 2019 cannot coexist with Exchange 2010:

    So, we should migrate mailboxes to Exchange 2013/2016 first, then uninstall Exchange 2010, then install Exchange 2019.

    Here are some related articles:

    Exchange Server supportability matrix 

    Exchange Server system requirements 

    Step-By-Step: Active Directory Migration from Windows Server 2008 R2 to Windows Server 2012 R2

    Regards,

    Kyle Xu


    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.

    Thursday, May 9, 2019 2:20 AM
  • You wont be able to introduce exchange 2019 where exchange 2010 is installed. It is a two step approach.

    Install Exchange 2016, migrate from 2010, remove exchange 2010 then introduce 2019.


    Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    Thursday, May 9, 2019 8:20 AM
  • Hi Joe Tam,

    I am writing here to confirm with you how thing going now?

    If the above suggestion helps, please be free to mark it as an answer for helping more people.

    Regards,

    Kyle Xu


    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.

    • Marked as answer by Joe Tam Monday, June 24, 2019 2:38 AM
    Tuesday, May 14, 2019 9:26 AM