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Remove-DbaAvailabilityGroup

Mon Jan 13, 2020 1:12 pm

NAME Remove-DbaAvailabilityGroup



SYNOPSIS

Removes availability groups on a SQL Server instance.





SYNTAX

Remove-DbaAvailabilityGroup [[-SqlInstance] <Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>]

[[-SqlCredential] <Pscredential>] [[-AvailabilityGroup] <System.String[]>] [-AllAvailabilityGroups <Switch>]

[[-InputObject] <Microsoft.SqlServer.Management.Smo.AvailabilityGroup[]>] [-EnableException <Switch>]

[<CommonParameters>]





DESCRIPTION

Removes availability groups on a SQL Server instance.



If possible, remove the availability group only while connected to the server instance that hosts the primary

replica.



When the availability group is dropped from the primary replica, changes are allowed in the former primary

databases (without high availability protection).



Deleting an availability group from a secondary replica leaves the primary replica in the RESTORING state, and

changes are not allowed on the databases.



Avoid dropping an availability group when the Windows Server Failover Clustering (WSFC) cluster has no quorum.



If you must drop an availability group while the cluster lacks quorum, the metadata availability group that is

stored in the cluster is not removed.



After the cluster regains quorum, you will need to drop the availability group again to remove it from the WSFC

cluster.



For more information: https://docs.microsoft.com/en-us/sql/t- ... ansact-sql





PARAMETERS

-AllAvailabilityGroups [<Switch>]

Remove all availability groups on an instance.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-AvailabilityGroup [<System.String[]>]

Only remove specific availability groups.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-EnableException [<Switch>]

By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.

This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables

advanced scripting.

Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own

try/catch.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-InputObject [<Microsoft.SqlServer.Management.Smo.AvailabilityGroup[]>]

Enables piping from Get-DbaAvailabilityGroup.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlCredential [<Pscredential>]

Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).



Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory -

Integrated are all supported.



For MFA support, please use Connect-DbaInstance.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlInstance [<Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>]

The target SQL Server instance or instances. Server version must be SQL Server version 2012 or higher.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,

ErrorAction, ErrorVariable, WarningAction, WarningVariable,

OutBuffer, PipelineVariable, and OutVariable. For more information, see

about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).



INPUTS



OUTPUTS



NOTES





Tags: AvailabilityGroup, HA, AG

Author: Chrissy LeMaire (@cl), netnerds.net



Website: https://dbatools.io

Copyright: (c) 2018 by dbatools, licensed under MIT

License: MIT https://opensource.org/licenses/MIT



-------------------------- EXAMPLE 1 --------------------------



PS C:\\>Remove-DbaAvailabilityGroup -SqlInstance sqlserver2012 -AllAvailabilityGroups



Removes all availability groups on the sqlserver2014 instance. Prompts for confirmation.

-------------------------- EXAMPLE 2 --------------------------



PS C:\\>Remove-DbaAvailabilityGroup -SqlInstance sqlserver2012 -AvailabilityGroup ag1, ag2 -Confirm:$false



Removes the ag1 and ag2 availability groups on sqlserver2012. Does not prompt for confirmation.

-------------------------- EXAMPLE 3 --------------------------



PS C:\\>Get-DbaAvailabilityGroup -SqlInstance sqlserver2012 -AvailabilityGroup availabilitygroup1 |

Remove-DbaAvailabilityGroup



Removes the availability groups returned from the Get-DbaAvailabilityGroup function. Prompts for confirmation.



RELATED LINKS

https://dbatools.io/Remove-DbaAvailabilityGroup