Applies to: Exchange Server 2010

Topic Last Modified: 2011-03-19

Use the Stop-DatabaseAvailabilityGroup cmdlet to stop a member of a database availability group (DAG) or to stop an entire Active Directory site. Stop-DatabaseAvailabilityGroup is used during a datacenter switchover. This cmdlet is used to mark the members of the DAG in a failed datacenter as stopped.

The Stop-DatabaseAvailabilityGroup cmdlet can be run against a DAG only when the DAG is configured with a DatacenterActivationMode value of DagOnly. For more information about DatacenterActivationMode, see Understanding Datacenter Activation Coordination Mode. You can use the Set-DatabaseAvailabilityGroup cmdlet to configure the value for DatacenterActivationMode.

Stop-DatabaseAvailabilityGroup -Identity <DatabaseAvailabilityGroupIdParameter> -ActiveDirectorySite <AdSiteIdParameter> [-ConfigurationOnly <SwitchParameter>] [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

Stop-DatabaseAvailabilityGroup -Identity <DatabaseAvailabilityGroupIdParameter> -MailboxServer <MailboxServerIdParameter> [-ConfigurationOnly <SwitchParameter>] [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

Parameter Required Type Description




The ActiveDirectorySite parameter is used to stop the DAG (for example, stop all members of the DAG).




The Identity parameter specifies the name of the DAG being stopped.




The MailboxServer parameter is used to stop a single member of the DAG.




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.




The ConfigurationOnly parameter updates the Active Directory properties with the stop action, but doesn't perform a stop of the DAG or any members. This parameter must be used when the DAG member servers are down, but Active Directory is up and accessible in the primary datacenter.

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 group" entry in the High Availability Permissions topic.

Error Description

This command can only be run on a database availability group (DAG) when the DatacenterActivationMode parameter for the DAG is set to DagOnly. (Error 3EBE1F79)

Indicates that datacenter activation mode is not enabled for the DAG. Use the Set-DatabaseAvailabilityGroup cmdlet to set the DatacenterActivationMode parameter for the DAG is set to DagOnly.

This example stops a Mailbox server named E14EX2 in a DAG named DAG1.

Stop-DatabaseAvailabilityGroup -Identity DAG1 -MailboxServer E14EX2

This example stops all members in a DAG named DAG1 that are in the Active Directory site named Redmond.

Stop-DatabaseAvailabilityGroup -Identity DAG1 -ActiveDirectorySite Redmond

This example stops a Mailbox server named E14EX3, which is currently offline, in a DAG named DAG2.

Stop-DatabaseAvailabilityGroup -Identity DAG1 -MailboxServer E14EX3 -ConfigurationOnly