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Before you go ahead and try the steps outlined in this article, know that arbitration mailboxes should be moved to a different server provided you have one. My organization hosts only a single Exchange 2013 server.

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Error:

Uninstall can’t continue. Database Mailbox Database 0912423282 : This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes. To get a list of all mailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of all mailbox plans in this database, run the command Get-MailboxPlan. To get a list of archive mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Archive. To get a list of all public folder mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -PublicFolder. To get a list of all arbitration mailboxes in this database, run the command Get-Mailbox -Database <Database ID> -Arbitration. To disable a non-arbitration mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID>. To disable an archive mailbox so you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID> -Archive. To disable a public folder mailbox so that you can delete the mailbox database, run the command Disable-Mailbox <Mailbox ID> -PublicFolder. Arbitration mailboxes should be moved to another server; to do this, run the command New-MoveRequest <parameters>. If this is the last server in the organization, run the command Disable-Mailbox <Mailbox ID> -Arbitration -DisableLastArbitrationMailboxAllowed to disable the arbitration mailbox. Mailbox plans should be moved to another server; to do this, run the command Set-MailboxPlan <MailboxPlan ID> -Database <Database ID>. It was running the command ‘Remove-MailboxDatabase ‘CN=Mailbox Database 0912423282,CN=Databases,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=contoso,CN=MicrosoftExchange,CN=Services,CN=Configuration,DC=contoso,DC=pri’ -whatif’.

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To resolve this, we need to move or disable the arbitration mailboxes on the server and remove the mailbox database manually.

You need to also ensure you do not have any user mailboxes in the database you are trying to get rid of.

Start Exchange Management Shell and type the command to display mailboxes in the whole forest and not just the domain you are logged into:

[PS] C:\Windows\system32>$AdminSessionADSettings.ViewEntireForest=$True

[PS] C:\Windows\system32>Get-MailboxDatabase -Server nbc-d-mbx02

Name Server Recovery ReplicationType

—- —— ——– —————

Database15         NBC-D-MBX02 False None

[PS] C:\Windows\system32>Get-MailboxDatabase “nbc-d-mbx02\Database15″ | Get-Mailbox

Now that you have the list of all mailboxes in the exchange database, move it to a different server

To work around the Arbitration mailbox issue, let’s find out the list of all Arbitration mailboxes

[PS] C:\Windows\system32>Get-Mailbox -Arbitration |ft Name, Servername

Name ServerName

—- ———-

SystemMailbox{1f05a927-0695-4348-bb62-d2369dcb23d5} nbc-d-mbx01

FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042 nbc-d-mbx01

SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} nbc-d-mbx02

SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c} nbc-d-mbx02

Migration.8f3e7716-2011-43e4-96b1-aba62d229136 nbc-d-mbx02

Now will disable all of those since I do not have a different server to move them to.

[PS] C:\Windows\system32>Disable-Mailbox “SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}” -Arbitration -DisableLastArbitrationMailboxAllowed

Confirm

Are you sure you want to perform this action?

Disabling mailbox “SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}” will remove the Exchange properties from the Active Directory user object and mark the mailbox in the database for removal. If the mailbox has an archive or remote archive, the archive will also be marked for removal. In the case of remote archives, this action is permanent. You can’t reconnect this user to the remote archive again.

[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is “Y”): a

[PS] C:\Windows\system32>Disable-Mailbox “SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}” -Arbitration -DisableLastArbitrationMailboxAllowed

Confirm

Are you sure you want to perform this action?

Disabling mailbox “SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}” will remove the Exchange properties from the Active Directory user object and mark the mailbox in the database for removal. If the mailbox has an archive or remote archive, the archive will also be marked for removal. In the case of remote archives, this action is permanent. You can’t reconnect this user to the remote archive again.

[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is “Y”): a

[PS] C:\Windows\system32>Disable-Mailbox “Migration.8f3e7716-2011-43e4-96b1-aba62d229136″ -Arbitration -DisableLastArbitrationMailboxAllowed

Confirm

Are you sure you want to perform this action?

Disabling mailbox “Migration.8f3e7716-2011-43e4-96b1-aba62d229136″ will remove the Exchange properties from the Active Directory user object and mark the mailbox in the database for removal. If the mailbox has an archive or remote archive, the archive will also be marked for removal. In the case of remote archives, this action is permanent. You can’t reconnect this user to the remote archive again.

[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is “Y”): a

[PS] C:\Windows\system32>Get-MailboxDatabase -Server nbc-d-mbx02

Name Server Recovery ReplicationType

—- —— ——– —————

Mailbox Database 0912423282 NBC-D-MBX02 False None

[PS] C:\Windows\system32>Remove-MailboxDatabase “Mailbox Database 0912423282″

Confirm

Are you sure you want to perform this action?

Removing mailbox database “Mailbox Database 0912423282″.

[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is “Y”): a

WARNING: The specified database has been removed. You must remove the database file located in E:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database 0912423282\Mailbox Database 0912423282.edb from your computer manually if it exists. Specified database: Mailbox Database 0912423282

You may now run setup.com /ps or prepareSchema and rerun the setup and it should continue.

Ratish Nair
MVP Exchange Server
Team@ MSExchangeGuru

Posted January 2nd, 2013 under Exchange 2013. RSS 2.0 feed. Leave a response, or trackback.