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Add-DbaAgReplica

Mon Jan 13, 2020 9:09 am

NAME Add-DbaAgReplica



SYNOPSIS

Adds a replica to an availability group on a SQL Server instance.





SYNTAX

Add-DbaAgReplica [[-SqlInstance] <Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>] [[-SqlCredential]

<Pscredential>] [[-Name] <String>] [[-AvailabilityMode] <String>] [[-FailoverMode] <String>] [[-BackupPriority]

<Int>] [[-ConnectionModeInPrimaryRole] <String>] [[-ConnectionModeInSecondaryRole] <String>] [[-SeedingMode]

<String>] [[-Endpoint] <String>] [-Passthru <Switch>] [[-ReadonlyRoutingConnectionUrl] <String>] [[-Certificate]

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

[<CommonParameters>]





DESCRIPTION

Adds a replica to an availability group on a SQL Server instance.



Automatically creates a database mirroring endpoint if required.





PARAMETERS

-AvailabilityMode [<String>]

Sets the availability mode of the availability group replica. Options are: AsynchronousCommit and

SynchronousCommit. SynchronousCommit is default.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-BackupPriority [<Int>]

Sets the backup priority availability group replica. Default is 50.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-Certificate [<String>]

Specifies that the endpoint is to authenticate the connection using the certificate specified by

certificate_name to establish identity for authorization.



The far endpoint must have a certificate with the public key matching the private key of the specified

certificate.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ConnectionModeInPrimaryRole [<String>]

Specifies the connection intent modes of an Availability Replica in primary role. AllowAllConnections by

default.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ConnectionModeInSecondaryRole [<String>]

Specifies the connection modes of an Availability Replica in secondary role. AllowAllConnections by default.



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



-Endpoint [<String>]

By default, this command will attempt to find a DatabaseMirror endpoint. If one does not exist, it will create

it.



If an endpoint must be created, the name "hadr_endpoint" will be used. If an alternative is preferred, use

Endpoint.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-FailoverMode [<String>]

Sets the failover mode of the availability group replica. Options are Automatic and Manual. Automatic is

default.



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



-Name [<String>]

The name of the replica. Defaults to the SQL Server instance name.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-Passthru [<Switch>]

Don't create the replica, just pass thru an object that can be further customized before creation.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-ReadonlyRoutingConnectionUrl [<String>]

Sets the read only routing connection url for the availability replica.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SeedingMode [<String>]

Specifies how the secondary replica will be initially seeded.



Automatic enables direct seeding. This method will seed the secondary replica over the network. This method

does not require you to backup and restore a copy of the primary database on the replica.



Manual requires you to create a backup of the database on the primary replica and manually restore that backup

on the secondary replica.



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:\\>Get-DbaAvailabilityGroup -SqlInstance sql2017a -AvailabilityGroup SharePoint | Add-DbaAgReplica

-SqlInstance sql2017b



Adds sql2017b to the SharePoint availability group on sql2017a

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



PS C:\\>Get-DbaAvailabilityGroup -SqlInstance sql2017a -AvailabilityGroup SharePoint | Add-DbaAgReplica

-SqlInstance sql2017b -FailoverMode Manual



Adds sql2017b to the SharePoint availability group on sql2017a with a manual failover mode.



RELATED LINKS

https://dbatools.io/Add-DbaAgReplica