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Dismount-Database

Applies to: Exchange Server 2010

Topic Last Modified: 2011-03-19

Use the Dismount-Database cmdlet to dismount a database on a computer running Microsoft Exchange Server 2010 that has the Mailbox server role installed. You can run this command only if the Microsoft Exchange Information Store service is running.


dismount-Database -Identity <DatabaseIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

Parameter Required Type Description

Identity

Required

Microsoft.Exchange.Configuration.Tasks.DatabaseIdParameter

The Identity parameter specifies the GUID or distinguished name (DN) that represents a specific database.

Confirm

Optional

System.Management.Automation.SwitchParameter

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.

DomainController

Optional

Microsoft.Exchange.Data.Fqdn

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

WhatIf

Optional

System.Management.Automation.SwitchParameter

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" entry in the Mailbox Permissions topic.

Error Description

 

Exceptions Description

 

This example dismounts the database MyDatabase. This command won't execute if the mailbox database contains user mailboxes.

Dismount-Database -Identity MyDatabase
Bb124936.note(en-us,EXCHG.140).gifNote:
Regardless of where you run this cmdlet, it operates against the server hosting the active copy of the database.
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