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Move-ActiveMailboxDatabase

Applies to: Exchange Server 2010

Topic Last Modified: 2011-04-22

Use the Move-ActiveMailboxDatabase cmdlet to perform a database switchover and specify a Mailbox server host for the active copy of a mailbox database. You can also use the Move-ActiveMailboxDatabase cmdlet to perform a server switchover.


Move-ActiveMailboxDatabase -Identity <DatabaseIdParameter> [-ActivateOnServer <MailboxServerIdParameter>] [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-MountDialOverride <None | Lossless | GoodAvailability | BestAvailability | BestEffort>] [-MoveComment <String>] [-SkipClientExperienceChecks <SwitchParameter>] [-SkipHealthChecks <SwitchParameter>] [-SkipLagChecks <SwitchParameter>] [-TerminateOnWarning <SwitchParameter>] [-WhatIf [<SwitchParameter>]]


Move-ActiveMailboxDatabase -Server <MailboxServerIdParameter> [-ActivateOnServer <MailboxServerIdParameter>] [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-MountDialOverride <None | Lossless | GoodAvailability | BestAvailability | BestEffort>] [-MoveComment <String>] [-TerminateOnWarning <SwitchParameter>] [-WhatIf [<SwitchParameter>]]

Parameter Required Type Description

Identity

Required

Microsoft.Exchange.Configuration.Tasks.DatabaseIdParameter

The Identity parameter specifies the identity of the mailbox database being activated.

Server

Required

Microsoft.Exchange.Configuration.Tasks.MailboxServerIdParameter

The Server parameter specifies the identity of the server from which to move all active mailbox databases.

ActivateOnServer

Optional

Microsoft.Exchange.Configuration.Tasks.MailboxServerIdParameter

The ActivateOnServer parameter specifies the name of the Mailbox server on which the mailbox database copy should be activated.

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.

MountDialOverride

Optional

Microsoft.Exchange.Data.Directory.SystemConfiguration.DatabaseMountDialOverride

The MountDialOverride parameter is used to override the auto mount dial setting for the target server and specify an alternate setting. Possible values are:

  • Lossless This is the default value. When using this value, the database doesn't automatically mount until all log files that were generated on the original active copy have been copied to the passive copy.
  • GoodAvailability If you specify this value, the database automatically mounts immediately after a failover if the copy queue length is less than or equal to 6. If the copy queue length is greater than 6, the database doesn't automatically mount. When the copy queue length is less than or equal to 6, Exchange attempts to replicate the remaining logs to the passive copy and then mounts the database.
  • BestEffort If you specify this value, the database automatically mounts regardless of the size of the copy queue length. Because the database will mount with any amount of log loss, using this value could result in a large amount of data loss.
  • BestAvailability If you specify this value, the database automatically mounts immediately after a failover if the copy queue length is less than or equal to 12. The copy queue length is the number of logs recognized by the passive copy that needs to be replicated. If the copy queue length is more than 12, the database doesn't automatically mount. When the copy queue length is less than or equal to 12, Exchange attempts to replicate the remaining logs to the passive copy and then mounts the database.

MoveComment

Optional

System.String

The MoveComment parameter specifies an optional administrative reason for the move operation. The comment is recorded in the Event log.

SkipClientExperienceChecks

Optional

System.Management.Automation.SwitchParameter

The SkipClientExperienceChecks parameter specifies whether to skip the search catalog (content index) state check to see if the search catalog is healthy and up to date. If the search catalog for the database copy you're activating is in an unhealthy or unusable state and you use this parameter to skip the search catalog health check and activate the database copy, you will need to either re-crawl or reseed the search catalog.

SkipHealthChecks

Optional

System.Management.Automation.SwitchParameter

The SkipHealthChecks parameter specifies whether to bypass passive copy health checks. With the SkipHealthChecks parameter, you can move the active copy to a database copy that's in the Failed state. This parameter should be used only if the initial attempt to move the active database has failed. This is because SkipHealthChecks performs additional validation to ensure that the log files are consistent, which can take a considerable amount of time.

SkipLagChecks

Optional

System.Management.Automation.SwitchParameter

The SkipLagChecks parameter specifies whether to allow a copy to be activated that has replay and copy queues outside of the configured criteria.

TerminateOnWarning

Optional

System.Management.Automation.SwitchParameter

The TerminateOnWarning parameter specifies whether to terminate the task and output an error message if a warning is encountered during the switchover operation.

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 Copy Permissions" section in the High Availability Permissions topic.

Error Description

 

 

This example performs a switchover of a database named DB2 to a Mailbox server named MBX1. When the command completes, MBX1 hosts the active copy of DB2. Because the MountDialOverride parameter is set to None, MBX1 mounts the database using its own defined database auto mount dial settings.

Move-ActiveMailboxDatabase DB2 -ActivateOnServer MBX1 -MountDialOverride:None

This example performs a switchover of a database named DB1 to a Mailbox server named MBX3. When the command completes, MBX3 hosts the active copy of DB1. Because the MountDialOverride parameter is specified with a value of Good Availability, MBX3 mounts the database using a database auto mount dial setting of GoodAvailability.

Move-ActiveMailboxDatabase DB1 -ActivateOnServer MBX3 -MountDialOverride:GoodAvailability

This example performs a switchover of a database named DB3 to a Mailbox server named MBX4. When the command completes, MBX4 hosts the active copy of DB3. Because the MountDialOverride parameter isn't specified, MBX4 mounts the database using a database auto mount dial setting of Lossless.

Move-ActiveMailboxDatabase DB3 -ActivateOnServer MBX4

This example performs a server switchover for a Mailbox server named MBX1. All active mailbox database copies on MBX1 will be activated on one or more other Mailbox servers with healthy copies of the active databases on MBX1.

Move-ActiveMailboxDatabase -Server MBX1
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