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Possible to increase New-MailboxImportRequest threads?

Exch 2010 SP1

Currently running a few hundred New-MailboxImportRequest commands which is going well, however the Exchange server only actively processes two requests at a time - the remainder are queued and processed in turn.

Question is, can I increase the number of active imports to say 4 or 8? My Exchange Server has 8 GB RAM and 4 CPU's and the Disk & Network IO have plenty of room to spare.

Thanks :)
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1 Solution

You have to edit a file to change this:
C:\Program Files\Microsoft\Exchange Server\V14\Bin\MSExchangeMailboxReplication.exe.config

Checkout these links for full directions:

Lester_ClaytonAuthor Commented:
Thanks for answer, I'll paste contents here just in case the other site link stops working.
Lester_ClaytonAuthor Commented:
Browse to the install location of Exchange and open the following file:

C:\Program Files\Microsoft\Exchange Server\V14\Bin\MSExchangeMailboxReplication.exe.config

Find the following line:
MaxActiveMovesPerTargetMDB = "2"

The default value (as of SP1, version 218.15, at least) seems to be 2.

Change the 2 to a 5, or an 8, or whatever you’d like it to be.

MaxActiveMovesPerTargetMDB = "5"

Review the other settings to make sure they reflect what you’d like to see in your environment, and to ensure you’re not getting throttled on any other setting that may pertain to what you’re trying to accomplish.

Save the file, and restart the Microsoft Exchange Mailbox Replication service.

These lines control the upper and lower limits for these settings:

MaxActiveMovesPerSourceMDB - 5, 0, 100
MaxActiveMovesPerTargetMDB - 5, 0, 100
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