Set-SqlAvailabilityReplica
Sets the settings on an availability replica.
Syntax
Set-SqlAvailabilityReplica
[-AvailabilityMode <AvailabilityReplicaAvailabilityMode>]
[-FailoverMode <AvailabilityReplicaFailoverMode>]
[-EndpointUrl <String>]
[-SessionTimeout <Int32>]
[-ConnectionModeInPrimaryRole <AvailabilityReplicaConnectionModeInPrimaryRole>]
[-ConnectionModeInSecondaryRole <AvailabilityReplicaConnectionModeInSecondaryRole>]
[-SeedingMode <AvailabilityReplicaSeedingMode>]
[-BackupPriority <Int32>]
[-ReadOnlyRoutingList <String[]>]
[-ReadonlyRoutingConnectionUrl <String>]
[-LoadBalancedReadOnlyRoutingList <String[][]>]
[[-Path] <String>]
[-Script]
[-AccessToken <PSObject>]
[-TrustServerCertificate]
[-HostNameInCertificate <String>]
[-Encrypt <String>]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Set-SqlAvailabilityReplica
[-AvailabilityMode <AvailabilityReplicaAvailabilityMode>]
[-FailoverMode <AvailabilityReplicaFailoverMode>]
[-EndpointUrl <String>]
[-SessionTimeout <Int32>]
[-ConnectionModeInPrimaryRole <AvailabilityReplicaConnectionModeInPrimaryRole>]
[-ConnectionModeInSecondaryRole <AvailabilityReplicaConnectionModeInSecondaryRole>]
[-SeedingMode <AvailabilityReplicaSeedingMode>]
[-BackupPriority <Int32>]
[-ReadOnlyRoutingList <String[]>]
[-ReadonlyRoutingConnectionUrl <String>]
[-LoadBalancedReadOnlyRoutingList <String[][]>]
[-InputObject] <AvailabilityReplica>
[-Script]
[-AccessToken <PSObject>]
[-TrustServerCertificate]
[-HostNameInCertificate <String>]
[-Encrypt <String>]
[-WhatIf]
[-Confirm]
[<CommonParameters>] Description
The Set-SqlAvailabilityReplica cmdlet sets or modifies a variety of properties for an availability replica. Run this cmdlet on the server instance that hosts the primary replica.
Examples
Example 1: Modify a replica availability mode and automatic failover
PS C:\> Set-SqlAvailabilityReplica -AvailabilityMode "SynchronousCommit" -FailoverMode Automatic -Path "SQLSERVER:\Sql\PrimaryServer\InstanceName\AvailabilityGroups\MainAG\AvailabilityReplicas\Replica02"This command modifies the replica named Replica02 in the availability group named MainAG to use synchronous-commit availability mode and to support
automatic failover.
Example 2: Modify a replica to support forced manual failover
PS C:\> Set-SqlAvailabilityReplica -AvailabilityMode AsynchronousCommit -FailoverMode Manual -Path "SQLSERVER:\Sql\PrimaryServer\InstanceName\AvailabilityGroups\MainAG\AvailabilityReplicas\Replica02"This command modifies the replica named Replica02 in the availability group named MainAG to use asynchronous-commit availability mode and to
support only forced manual failover, which could incur data loss.
Example 3: Allow all connections in the secondary role
PS C:\> Set-SqlAvailabilityReplica -ConnectionModeInSecondaryRole AllowAllConnections -Path "SQLSERVER:\Sql\PrimaryServer\InstanceName\AvailabilityGroups\MainAG\AvailabilityReplicas\Replica02"This command modifies the replica Replica02 in the availability group MainAG to allow all connections in the secondary role.
This lets you offload read-only data processing workloads to secondary replicas.
Example 4: Configure a primary replica and secondary replica for readonly routing
PS C:\> Set-Location "SQLSERVER:\SQL\PrimaryServer\default\AvailabilityGroups\MainAG"
PS C:\> $PrimaryReplica = Get-Item "AvailabilityReplicas\PrimaryServer"
PS C:\> $SecondaryReplica = Get-Item "AvailabilityReplicas\SecondaryServer"
PS C:\> Set-SqlAvailabilityReplica -ReadOnlyRoutingConnectionUrl "TCP://PrimaryServer.domain.com:5022" -InputObject $PrimaryReplica
PS C:\> Set-SqlAvailabilityReplica -ReadOnlyRoutingConnectionUrl "TCP://SecondaryServer.domain.com:5022" -InputObject $SecondaryReplica
PS C:\> Set-SqlAvailabilityReplica -ReadOnlyRoutingList "SecondaryServer","PrimaryServer" -InputObject $PrimaryReplicaThe first command changes location to a location in the SQLSERVER: provider.
The fourth command assigns a read-only routing URL to the primary replica. Then it sets the read-only routing list on the primary replica.
Example 5: Modify backup priority
PS C:\> Set-SqlAvailabilityReplica -BackupPriority 60 -Path "SQLSERVER:\Sql\Computer\Instance\AvailabilityGroups\MainAG\AvailabilityReplicas\Replica02"This command sets the backup priority of the availability replica Replica02 to 60.
This priority is used by the server instance that hosts the primary replica to decide which replica should service an automated backup request
on a database in the availability group. The replica that has the highest priority is chosen.
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 |
-AvailabilityMode
Specifies the replica availability mode.
You can specify a value of $Null.
| Type: | AvailabilityReplicaAvailabilityMode |
| Accepted values: | AsynchronousCommit, SynchronousCommit, Unknown, ConfigurationOnly |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-BackupPriority
Specifies the desired priority of the replicas in performing backups. The acceptable values for this parameter are integers from 0 through 100. Of the set of replicas which are online and available, the replica that has the highest priority performs the backup.
A value of zero (0) indicates that the replica is not a candidate.
| Type: | Int32 |
| Position: | Named |
| Default value: | None |
| 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 |
-ConnectionModeInPrimaryRole
Specifies how the availability replica handles connections when in the primary role. The acceptable values for this parameter are:
- AllowReadWriteConnections. Allows read/write connections.
- AllowAllConnections. Allows all connections.
| Type: | AvailabilityReplicaConnectionModeInPrimaryRole |
| Accepted values: | AllowAllConnections, AllowReadWriteConnections, Unknown |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ConnectionModeInSecondaryRole
Specifies how the availability replica handles connections when in the secondary role. The acceptable values for this parameter are:
- AllowNoConnections. Disallows connections.
- AllowReadIntentConnectionsOnly. Allows only read-intent connections.
- AllowAllConnections. Allows all connections.
| Type: | AvailabilityReplicaConnectionModeInSecondaryRole |
| Accepted values: | AllowNoConnections, AllowReadIntentConnectionsOnly, AllowAllConnections, Unknown |
| Position: | Named |
| Default value: | None |
| 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 |
-EndpointUrl
Specifies the URL of the database mirroring endpoint.
This URL is a TCP address in the following form: TCP://system-address:port
| Type: | String |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-FailoverMode
Specifies the failover mode.
You can specify a value of $Null.
| Type: | AvailabilityReplicaFailoverMode |
| Accepted values: | Automatic, Manual, External, Unknown |
| 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 availability group, as an AvailabilityGroup object, to which the replica belongs.
| Type: | AvailabilityReplica |
| Position: | 1 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| Accept wildcard characters: | False |
-LoadBalancedReadOnlyRoutingList
Specifies the load-balanced read-only routing list.
The routing list is a list of load-balanced sets, which in turn are lists of replicas.
For example, passing a value like
@('Server1','Server2'),@('Server3'),@('Server4')
means what we are passing 3 load-balanced sets: 1 with 2 replicas (Server1 and Server2) and 2 with just one (Server3 and Server4, respectively).
At runtime, SQL Server will look sequentially at all the load-balanced sets until finds one such that at least on replica in it is available and use it for load-balancing.
So, in the example above, if both Server1 and Server2 are not available, but Server3 is, SQL Server will pick Server3.
This cmdlet only sets the read-only routing list and does not check on the availablility of the specified replicas.
| Type: | String[][] |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-Path
Specifies the path of the availability group to which the replica belongs. If you do not specify this parameter, this cmdlet uses current working location.
| Type: | String |
| Position: | 1 |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ReadonlyRoutingConnectionUrl
Specifies the fully-qualified domain name (FQDN) and port to use when routing to the replica for
read-only connections, as in the following example: TCP://DBSERVER8.manufacturing.Contoso.com:7024
| Type: | String |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-ReadOnlyRoutingList
Specifies an ordered list of replica server names that represent the probe sequence for connection director to use when redirecting read-only connections through this availability replica. This parameter applies if the availability replica is the current primary replica of the availability group.
| Type: | String[] |
| 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 |
-SeedingMode
Specifies how the secondary replica will be initially seeded.
Allowed values:
- 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. Specifies manual seeding. This method requires you to create a backup of the database on the primary replica and manually restore that backup on the secondary replica.
| Type: | AvailabilityReplicaSeedingMode |
| Accepted values: | Automatic, Manual |
| Position: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
-SessionTimeout
Specifies the amount of time, in seconds, to wait for a response between the primary replica and this replica before the connection fails.
| Type: | Int32 |
| 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.AvailabilityReplica