Applies to: Exchange Server 2016

This cmdlet is available only in on-premises Exchange Server 2016.

Use the Suspend-MailboxDatabaseCopy cmdlet to block replication and replay activities (log copying and replay) or activation for a database configured with two or more database copies.

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

Suspend-MailboxDatabaseCopy -Identity <DatabaseCopyIdParameter> [-ActivationOnly <SwitchParameter>] [-SuspendComment <String>] <COMMON PARAMETERS>
Suspend-MailboxDatabaseCopy -EnableReplayLag <SwitchParameter> -Identity <DatabaseCopyIdParameter> <COMMON PARAMETERS>
COMMON PARAMETERS: [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-WhatIf [<SwitchParameter>]]

This example suspends replication and replay activity for the copy of the database DB1 hosted on the Mailbox server MBX3. An optional administrative reason for the suspension is specified.

Suspend-MailboxDatabaseCopy -Identity DB1\MBX3 -SuspendComment "Maintenance on MBX3"

This example only suspends activation for the copy of the database DB3 hosted on the Mailbox server MBX2.

Suspend-MailboxDatabaseCopy -Identity DB3\MBX2 -ActivationOnly

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.


Parameter Required Type Description




This parameter is reserved for internal Microsoft use.




The Identity parameter specifies the name of the database copy being suspended.




The ActivationOnly switch specifies whether to suspend only activation for the mailbox database copy.




The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.

  • Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax: -Confirm:$false.

  • Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.




The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example,




The SuspendComment parameter specifies the reason that the database copy is being suspended. This parameter is limited to 512 characters.




The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this switch.

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.

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.