Increase Exchange 2010 default move request

By default, Exchange 2010 support moves 2 mailboxes at the same time. To modify this default settings, you have to navigate to "<Exchange Installation Path>\Program Files\Microsoft\Exchange Server\V14\Bin". Using Notepad opens "MSExchangeMailboxReplication.exe.config" file.

Remark: This file is saved in Client Access Role servers.

1. Navigate to the "MRSConfiguration" session.

Figure 1: MRSConfiguration

2. Modify the following items to increase move request.

MaxActiveMovesPerSourceMDB = "50"

MaxActiveMovesPerTargetMDB = "50"

MaxActiveMovesPerSourceServer = "200"

MaxActiveMovesPerTargetServer = "200"

MaxTotalMovesPerMRS = "400"

Figure 2: Updated MRSConfiguration

3. Save and Close the "MSExchangeMailboxReplication.exe.config".

4. Launch "Exchange Management Shell", enter "Restart-Service MSExchangeMailboxReplication".

Now, the Exchange 2010 server can moves 50 mailboxes from source mailbox database to target mailbox database, and moves 200 mailboxes from source server to target server.

Reference:
http://technet.microsoft.com/en-us/library/ff963524.aspx

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