Applies to: Exchange Server 2013

Topic Last Modified: 2012-11-05

Use the Remove-MailboxDatabaseCopy cmdlet to remove a passive copy of a mailbox database.

For information about the parameter sets in the Syntax section below, see Syntax.


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



This example removes a copy of mailbox database DB1 from the Mailbox server MBX3.

Copy Code
Remove-MailboxDatabaseCopy -Identity DB1\MBX3

Detailed Description

To use the Remove-MailboxDatabaseCopy cmdlet to remove a mailbox database copy, the following criteria must be met:

  • The database availability group (DAG) hosting the mailbox database must have quorum and all cluster and network functions must be healthy.

  • If you're removing the last passive copy of the database, continuous replication circular logging (CRCL) must not be enabled for the specified mailbox database. If CRCL is enabled, you must first disable it. After the mailbox database copy has been removed, circular logging can be enabled. After enabling circular logging for a non-replicated mailbox database, JET circular logging is used instead of CRCL. If you aren't removing the last passive copy of a database, CRCL can remain enabled.

You can't use this cmdlet to remove the active copy of a mailbox database. To remove the active copy of a mailbox database, you must first remove all passive copies of the database, and then use the Remove-MailboxDatabase cmdlet to remove the active copy.

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 "Database availability groups" entry in the High Availability and Site Resilience Permissions topic.

Running this cmdlet removes the mailbox database copy configuration, but doesn't delete the database copy's files. If necessary, you can manually delete those files.


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 can be used to suppress the confirmation prompt that appears by default when this cmdlet is run. To suppress the confirmation prompt, use the syntax -Confirm:$False. You must include a colon ( : ) in the syntax.




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.

Input Types

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

Return Types

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.