This is an archive version of the document. To get the most up-to-date information, see the current version.Start-VBRHvReplicaFailback
Short Description
Performs failback to the production host.
Applies to
Platform: Hyper-V
Product Edition: Standard, Enterprise, Enterprise Plus
Syntax
Start-VBRHvReplicaFailback -RestorePoint <COib> [-Reason <String>] [-RunAsync] [-WarningAction <ActionPreference>] [-WarningVariable <String>] [-WhatIf] [-Confirm] [<CommonParameters>] |
Related Commands
Detailed Description
This cmdlet stars failing back to the production host after failover to its replica.
This cmdlet lets you finalize the replica failover started with Start-VBRHvReplicaFailover by switching back to the production VM with data synchronization.
When you perform failback, you switch back to the original VM on the production site. The failback process collects all the changes that were made to the replica while you failed over to it, and implies them to the source VM. This allows you to switch between source and replica VMs without data loss.
To switch back to the production VM and discard the changes made to the replica while failover, start an undo failover process. In this case you return to the production VM in the state preceeding failover. Run Stop-VBRReplicaFailover to undo failover.
Undo Failback: If you tried to fail back to the original VM but was unable to, because i.e. it was non-functional or corrupted, you can undo the failback and return to the working replica. Run Stop-VBRViReplicaFailback to undo failback.
Parameters
Parameter | Description | Required | Position | Accept | Accept |
RestorePoint | Specifies the replica restore point which you want to fail back. | True | Named | True (ByValue, | False |
Reason | Specifies the reason for performing a failback. | False | Named | False | False |
RunAsync | Indicates that the command returns immediately without waiting for the task to complete. | False | Named | False | False |
WhatIf | Specifies whether the cmdlet writes a message that describes the effects of running the cmdlet without actually performing any action. | False | Named | False | False |
Confirm | Specifies whether the cmdlet displays a prompt that asks if the user is sure that they want to continue. | False | Named | False | False |
<CommonParameters>
This cmdlet supports Microsoft PowerShell common parameters. For more information about common parameters, see http://go.microsoft.com/fwlink/p/?LinkID=113216.
Example 1
This command fails back from the VM replica named "WebServer_ replica". The restore point is obtained with Get-VBRRestorePoint and piped down. The restore points of the VM are filtered with Sort-Object method by the "creationtime" property to get the most recent one. The reason is "Configuration recovery". The RunAsync parameter is set to bring the process to the background.
PS C:\PS> Get-VBRRestorePoint -Name "WebServer_replica" | Sort-Object $_.creationtime -Descending | Select -First 1 | Start-VBRHvReplicaFailback -Reason "Configuration recovery" -RunAsync |
Example 2
This command fails back from the VM replica represented by the $"WebServer_replica restorepoint" variable. The restore point is obtained with Get-VBRRestorePoint and assigned to the variable beforehand. The reason is "Data recovery". The RunAsync parameter is set to bring the process to the background.
