Show and move “hidden” Arbitration mailboxes in Exchange Server 2010

When you have a new installation of Server and you want to move all mailboxes, including all hidden Mailboxen (Arbitration) from the default database store to a database that you created. Here is how i did it.

When you try to delete the default database you will get this message:

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The Database is not empty, even though it does look empty if you do a get-mailbox for the specific database:

get-mailbox -Database “Mailbox Database 1905367170”

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There is a switch that you should use if you want to see all mailboxes, even the “hidden” Arbitration mailboxes:

get-mailbox -Database “Mailbox Database 1905367170” –Arbitration

This gives a different result.
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As you can se the database is n’t as empty as we first thought. To move these mailboxes to the new database you can easily pipe the result of the get-mailbox command and create new move requests for all Arbitration mailboxes:

get-mailbox -Database “Mailbox Database 1905367170” -Arbitration | New-MoveRequest –TargetDatabase “MailboxDatabase1”

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Source: msundis.wordpress.com

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