Removing Exchange Mailbox

Good afternoon

I have 3 Exchange DB's.  I'm looking to delete one that is no longer being used.  Before I can do this I have to move the SystemMailbox on that DB.

Referencing this technet article
http://social.technet.microsoft.com/wiki/contents/articles/3912.exchange-2010-how-to-delete-the-first-database-and-move-the-system-mailboxes.aspx

As you can see from the attached image, the first command shows 2 X SystemMailboxes which have different GUID's than I expect.
The second command shows the DB that I want to move.
Why is that second command output SystemMailbox not showing up in the first command output?

Also the other 2 DB SystemMailbox accounts do not show up in that first output either.

What am I missing here?
Any help is greatly appreciated.

Thank you,
Eric
ExchangeDB.png
VeresenAsked:
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y4utechCommented:
Hi Veresen,

Please refer the below mentioned link steps to move Arbitration mailbox and delete the default database in Exchange Server 2010.

http://svmanjrekar.wordpress.com/2012/02/24/move-arbitration-mailbox-and-delete-the-default-database-in-exchange-server-2010/


Thanks.
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VeresenAuthor Commented:
Thanks for the reply.
When I run Get-Mailbox -Arbitration
The output does not show a mailbox in that Default DB
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y4utechCommented:
You can also use below command to check Arbitration mailbox.

get-mailbox -Database “Database Name¿ –Arbitration
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y4utechCommented:
get-mailbox -Database "Database Name" –Arbitration
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VeresenAuthor Commented:
Great, Arbitration mailbox's have now been moved.
When I run a function to show Database statistics it still shows mailbox's exist within the default DB. Do I need to wait on a DB clean up?
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y4utechCommented:
Move all the mailboxes from default database before deleting otherwise it will give you error message.
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VeresenAuthor Commented:
It's the 3 arbitration mailbox's I just moved. It shows them as being in the new Database. when I run this command - get-mailbox -Database "Database Name" –Arbitration
However, when I list mailbox's for the default DB they still show up there.
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y4utechCommented:
Always move all user mailboxes to another database before moving Arbitration mailbox.

Is that User Mailbox?

If Yes then move the same to another database.......
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VeresenAuthor Commented:
It's not a user database it's the following
- Microsoft Exchange
- Systemmailbox(GUID)
- Microsoft Exchange Federation Mailbox
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VeresenAuthor Commented:
*user mailbox's
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y4utechCommented:
Move above mentioned mailboxes to another database and then delete the default database.
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VeresenAuthor Commented:
My problem being a New-MoveRequest is saying they don't exist for an 'identity'
Is there a command for moving all mailbox's from default DB?
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VeresenAuthor Commented:
When I perform these 2 commands, nothing happens
Get-Mailbox -Database "Default DB" -Arbitration | New-MoveRequest -TargetDatabase "Mailbox Database 1"
Get-Mailbox -Database "Default DB"| New-MoveRequest -TargetDatabase "Mailbox Database 1"

Yet these three mailboxes remain
- Microsoft Exchange
- Systemmailbox(GUID)
- Microsoft Exchange Federation Mailbox
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y4utechCommented:
Try to remove the default database and if you faced any error message then past it over here.

Before that run the following command on the server.

>Get-Moverequest -SourceDatabase "Default Database"

If move request status has been completed successfully then run the following command.

> Get-MoveRequest -SourceDatabase "Default Database" | Remove-MoveRequest

After removing move request run the following command to remove the mailbox daabase.

> remove-MailboxDatabase -Identity "Default Database" -Confirm
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VeresenAuthor Commented:
It still shows 1 SystemMailbox in the default DB - Thoughts?
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VeresenAuthor Commented:
So I removed the DB successfully.  Thanks for your help
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