Applies to: Exchange Server 2010

Topic Last Modified: 2011-03-19

Use the Remove-MailboxDatabaseCopy cmdlet to remove a mailbox database copy from an existing database. You cannot use this cmdlet to remove the last copy of a mailbox database. To remove the last copy of a mailbox database, you must use the Remove-MailboxDatabase cmdlet.

Remove-MailboxDatabaseCopy -Identity <DatabaseCopyIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

Parameter Required Type Description




The Identity parameter specifies the name of the mailbox database whose copy is being removed. When using this parameter, specify a format of DatabaseName\ServerName.




The Confirm switch causes the command to pause processing and requires you to acknowledge what the command will do before processing continues. You don't have to specify a value with the Confirm switch.




The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.




The WhatIf switch instructs the command to simulate the actions that it would take on the object. By using the WhatIf switch, you can view what changes would occur without having to apply any of those changes. You don't have to specify a value with the WhatIf switch.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the"mailbox database copy" entry in the High Availability Permissions topic.

You cannot remove the active copy of a mailbox database. To remove a database that is an active copy, you must first switch the database over to a new active copy by using the Move-ActiveMailboxDatabase cmdlet.

Error Description


This example removes a copy of mailbox database DB1 from a Mailbox server named EXMBX3.

Remove-MailboxDatabaseCopy -Identity DB1\EXMBX3 -Confirm:$False