Remove-DatabaseAvailabilityGroupServer

Reference

Module:: ExchangePowerShell

Applies to:: Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

This cmdlet is available only in on-premises Exchange.

Use the Remove-DatabaseAvailabilityGroupServer cmdlet to remove a Mailbox server from a database availability group (DAG). To remove a Mailbox server from a DAG, the Mailbox server must not host any replicated databases.

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

Syntax

Remove-DatabaseAvailabilityGroupServer
      [-Identity] <DatabaseAvailabilityGroupIdParameter>
      [-MailboxServer] <ServerIdParameter>
      [-ConfigurationOnly]
      [-Confirm]
      [-DomainController <Fqdn>]
      [-SkipDagValidation]
      [-WhatIf]
      [<CommonParameters>]

Description

You need to be assigned permissions before you can run this cmdlet. Although this topic lists all parameters for the cmdlet, you may not have access to some parameters if they're not included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet.

Examples

Example 1

Remove-DatabaseAvailabilityGroupServer -Identity DAG3 -MailboxServer MBX1

This example removes the Mailbox server MBX1 from the DAG DAG3.

Example 2

Remove-DatabaseAvailabilityGroupServer -Identity DAG2 -MailboxServer MBX4 -ConfigurationOnly

This example removes the configuration settings for the Mailbox server MBX4 from the DAG DAG2. MBX4 is currently offline and expected to be offline for an extended period, so its configuration is being removed from the DAG to establish quorum for the DAG or to reduce the number of members needed for quorum by the DAG.

Parameters

-ConfigurationOnly

The ConfigurationOnly switch remove the Mailbox server from the DAG object in Active Directory. You don't need to specify a value with this switch.

If the Mailbox server is offline but the DAG has quorum, the Mailbox server is evicted from the DAG's cluster and removed from the DAG object in Active Directory.

You should use this switch only if the Mailbox server has been lost and can no longer be contacted, or in situations when the Mailbox server can't be restored to operational service before the messaging service is needed.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-Confirm

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.

Type:	SwitchParameter
Aliases:	cf
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-DomainController

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, dc01.contoso.com.

Type:	Fqdn
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-Identity

The Identity parameter specifies the name of the DAG from which you're removing the server.

Type:	DatabaseAvailabilityGroupIdParameter
Position:	1
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-MailboxServer

The MailboxServer parameter specifies the Mailbox server to remove from the DAG. You can use any value that uniquely identifies the server. For example:

Name
FQDN
Distinguished name (DN)
ExchangeLegacyDN

Type:	ServerIdParameter
Position:	2
Default value:	None
Required:	True
Accept pipeline input:	True
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-SkipDagValidation

The SkipDagValidation switch specifies whether to bypass the validation of the DAG's quorum model and the health check on the DAG's witness when removing members from the DAG. You don't need to specify a value with this switch.

Type:	SwitchParameter
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

-WhatIf

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.

Type:	SwitchParameter
Aliases:	wi
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False
Applies to:	Exchange Server 2010, Exchange Server 2013, Exchange Server 2016, Exchange Server 2019

Inputs

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.

Outputs

Output 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.

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