Join-SqlAvailabilityGroup
Joins the local secondary replica to an availability group.
Syntax
Join-SqlAvailabilityGroup
[-Name] <String>
[[-Path] <String>]
[-ClusterType <AvailabilityGroupClusterType>]
[-Script]
[-AccessToken <PSObject>]
[-TrustServerCertificate]
[-HostNameInCertificate <String>]
[-Encrypt <String>]
[-ProgressAction <ActionPreference>]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Join-SqlAvailabilityGroup
[-Name] <String>
[-InputObject] <Server>
[-ClusterType <AvailabilityGroupClusterType>]
[-Script]
[-AccessToken <PSObject>]
[-TrustServerCertificate]
[-HostNameInCertificate <String>]
[-Encrypt <String>]
[-ProgressAction <ActionPreference>]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Description
The Join-SqlAvailabilityGroup cmdlet joins the local secondary replica to an availability group.
Run this cmdlet on an instance of SQL Server that hosts a secondary replica that is not joined to the availability group.
Examples
Example 1: Join a secondary replica to an availability group
PS C:\> Join-SqlAvailabilityGroup -Path "SQLSERVER:\SQL\SecondaryServer\InstanceName" -Name "MainAG"This command joins a secondary replica to the availability group named 'MainAG'. This server instance must host a secondary replica in this availability group.
Example 2: Create a script that joins a secondary replica to an availability group
PS C:\> Join-SqlAvailabilityGroup -Path "SQLSERVER:\SQL\SecondaryServer\InstanceName" -Name "MainAG" -ScriptThis command creates a Transact-SQL script that joins a secondary replica to the availability group named 'MainAG'.
Parameters
-AccessToken
The access token used to authenticate to SQL Server, as an alternative to user/password or Windows Authentication.
This can be used, for example, to connect to SQL Azure DB and SQL Azure Managed Instance
using a Service Principal or a Managed Identity.
The parameter to use can be either a string representing the token or a PSAccessToken object as returned by running Get-AzAccessToken -ResourceUrl https://database.windows.net.
This parameter is new in v22 of the module.
| Type: | PSObject |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ClusterType
The type of cluster backing the AG. Possible values are:
- Wsfc. The AG will be integrated in Windows Server Failover Cluster. This is how AGs in SQL Server 2016 and below are created. This is the default.
- None. The AG will be cluster-independent.
- External. The AG will be managed by a cluster manager that is not a Windows Server Failover Cluster, like Pacemaker on Linux. This is supported in SQL Server 2017 and above. When targeting SQL Server on Linux, you must specify this value or an error will occour.
| Type: | AvailabilityGroupClusterType |
| Accepted values: | Wsfc, None, External |
| Position: | Named |
| Default value: | Wsfc |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Confirm
Prompts you for confirmation before running the cmdlet.
| Type: | SwitchParameter |
| Aliases: | cf |
| Position: | Named |
| Default value: | False |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Encrypt
The encryption type to use when connecting to SQL Server.
This value maps to the Encrypt property SqlConnectionEncryptOption on the SqlConnection object of the Microsoft.Data.SqlClient driver.
In v22 of the module, the default is Optional (for compatibility with v21). In v23+ of the module, the default value will be 'Mandatory', which may create a breaking change for existing scripts.
This parameter is new in v22 of the module.
| Type: | String |
| Accepted values: | Mandatory, Optional, Strict |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-HostNameInCertificate
The host name to be used in validating the SQL Server TLS/SSL certificate. You must pass this parameter if your SQL Server instance is enabled for Force Encryption and you want to connect to an instance using hostname/shortname. If this parameter is omitted then passing the Fully Qualified Domain Name (FQDN) to -ServerInstance is necessary to connect to a SQL Server instance enabled for Force Encryption.
This parameter is new in v22 of the module.
| Type: | String |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-InputObject
Specifies the server that hosts the instance of SQL Server that hosts the secondary replica that this cmdlet joins to the availability group.
| Type: | Server |
| Position: | 2 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-Name
Specifies the name of the availability group to which this cmdlet joins a secondary replica.
| Type: | String |
| Position: | 1 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Path
Specifies the path of the instance of SQL Server that hosts the secondary replica that this cmdlet joins to the availability group. If you do not specify this parameter, this cmdlet uses current working location.
| Type: | String |
| Position: | 2 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ProgressAction
Determines how PowerShell responds to progress updates generated by a script, cmdlet, or provider, such as the progress bars generated by the Write-Progress cmdlet. The Write-Progress cmdlet creates progress bars that show a command's status.
| Type: | ActionPreference |
| Aliases: | proga |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Script
Indicates that this cmdlet returns a Transact-SQL script that performs the task that this cmdlet performs.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-TrustServerCertificate
Indicates whether the channel will be encrypted while bypassing walking the certificate chain to validate trust.
In v22 of the module, the default is $true (for compatibility with v21). In v23+ of the module, the default value will be '$false', which may create a breaking change for existing scripts.
This parameter is new in v22 of the module.
| Type: | SwitchParameter |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
| Type: | SwitchParameter |
| Aliases: | wi |
| Position: | Named |
| Default value: | False |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
Inputs
Microsoft.SqlServer.Management.Smo.Server
You can pass a server instance to this cmdlet.
Notes
The high availability data recovery service must be enabled on the server instance. The availability replica specified by the Path parameter must exist.