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How to: Increasing Simultaneously number of Mailbox move in Exchange 2010

Increasing Simultaneously number of Mailbox move in Exchange 2010

Author: Zahir Hussain Shah

During the transitioning phase of legacy Exchange Server to Exchange 2010, sometime, we want to minimize the time required to move all the current mailboxes available on Exchange 2003 / 2007 to Exchange 2010, and for configuring your Exchange 2010 to process high number of mailboxes move simultaneously, we need to change the default configuration, which described as follows:

1) Go to all Exchange 2010 CAS Servers, open the below file in notepad or any file editor:
C:\Program Files\Microsoft\Exchange Server\V14\Bin\MSExchangeMailboxReplication.exe.config

2) Change the below values:

a. MaxActiveMovesPerSourceMDB = “25”

b. MaxActiveMovesPerTargetMDB = “25”

c. MaxActiveMovesPerTargetServer = “25”

3) Save the file and restart the “Microsoft Exchange Replication” service.

Cheers!

Zahir Hussain Shah
Infrastructure Practice Consultant – Unified Communications
MCSE, MCTS, MCTIP Enterprise Administrator, CCNA, ITIL
Blog: http://zahirshahblog.com | LinkedIn | Twitter

Azure Hybrid Blog

8 responses to “How to: Increasing Simultaneously number of Mailbox move in Exchange 2010”

  1. Parveen Khanna

    Hi Zahir

    One of my customer has tried this option and changed the values to 25 but while moving the mailboxes from Exchange 2007 to Exchange 2010, only two mailboxes are being moved at at time.
    Can you guide how to diagnose this issue ? He want to do bulk migration and seeking our help

    Thanks
    Regards
    Parveen Khanna

  2. ZAHIR HUSSAIN SHAH

    Hi Parveen,

    Let me first describe you the basic requirements of this solution to work at your customer site:

    Assume that we have two CAS/HUB of Exchange 2010, and we want to increase the Simultaneously moving of mailboxes from Exchange 2007 to Exchange 2010, so therefore, you should change the below described values in the “MSExchangeMailboxReplication.exe.config” for both CAS Server, and then restart the “Mailbox Replication Service”

    MaxActiveMovesPerSourceMDB = “50”
    MaxActiveMovesPerTargetMDB = “50”
    MaxActiveMovesPerSourceServer = “50”
    MaxActiveMovesPerTargetServer = “50”
    MaxTotalMovesPerMRS = “100”

    Save the file, and then restart the “”Mailbox Replication Service”.

    Additionally, I tested this solution before writing this article.

    Try once again, and let me know, if there is any problem, please do let me know here, or email me zahirjajee@hotmail.com.

    Zahir

  3. seoinchandigarh

    Thanks for the wonderful resources and bits of inspiration.

  4. danman32

    Your original article mistakenly states to restart the Microsoft Exchange Replication service. The correct service is Microsoft Exchange MAILBOX Replication service. Your last post then states “Mailbox Replication Service”

    I successfully made the change but it took a few tries. For some reason my initial edit of the config didn’t take, and i also mistakenly restarted the wrong service.
    Once I edited the file verified the edit took and restarted the correct service, I then had 5 moves in progress at one time.
    The BIN directory is protected so editing files in-place is a pain.

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  6. Ashwin

    Hi Zahir,After doing the above advised changes, all the move request mail boxes will be queued but nothing happens even after a day. I have even reverted back the settings but no lucky. Now I am unable to move single mailbox also. Can you advise what more needs to done.

  7. Zahir Hussain Shah

    Give a restart to “Exchange Mailbox Replication Service” on both the Exchange Mailbox Servers, additionally you can look into the event-viewer for any further error findings.

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