Move mailboxes to another database/server in Exchange 2010/2013/2016/2019

Microsoft Exchange Server – Network Encyclopedia
By MAS MVE Exchange Server, Windows Server, Active Directory, Virtu alization, Skype for Business Expert.
A method of moving multiple mailboxes (in bulk) to another database in an Exchange 2010/2013/2016 environment…

There are often cases where administrators may need to merge two mailbox databases to one, or move all mailboxes to other mailboxdatabase or move mailboxes after installing new version of Exchange.

Questions about this process have been frequently popping up at Experts Exchange of late, so I’ve decided to write an article explaining how to move Microsoft Exchange mailboxes in a bulk or one bye one fashion, thus saving a lot of time.

First, let’s view all the mailboxes in the database using the following command;

Now let’s try to move in bulk. Mailboxdb02 is the old database name and Mailboxdb01 is the new database name.

Now there are cases server memory is not enough (or low bandwidth between servers) to move multiple move request at a time. You can use the below script/command. This will create a move request and monitor the move request every 3 minutes, Once complete it will start the next move request.

When the current move is completed you will see an error “Couldn’t find a move request that corresponds to the specified /domain/OU/username”  as move status is not equal to queued or inprogress and will start the next move request as below.

Now lets move the system mailboxes to the new database or server. Lets check system mailboxes.

Next command will move the system/arbitration mailboxes to Mailboxdb01.

Let’s check on the progress. You can also set, suspend, remove, resume, and Get-MoveRequestStatisticswhere we are going to use the last one next.

What we can do instead, is use piping the Get-MorvRequest and Get-MoveRequestStaticstics. Remember, this will not only display just this last jump if previous jobs are not removed after completion.

Now let’s remove MoveRequest by issuing the following command if all move request is completed:

Let’s run Get-MoveRequest again to verify that nothing shows up.

Now all your mailboxes have been moved to a different database.

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