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Perform Disaster Recovery In Case Of Virtual Machine Failover In Azure

In this article, we will see how to perform disaster recovery in case of virtual machine failover in Azure.

Implementation Steps

For implementation, we will perform the following actions: -

Create the replication of a virtual machine
Invoke a failover
Clean the failover

Let us discuss each step.

Create The Replication Of A Virtual Machine

For creating the replication, the first thing is to create a virtual machine with the backup enabled. In the details section, go to the Disaster Recovery tab where you can specify the target region.

Picture showing the Disaster Recovery option in virtual machine

In the Advanced settings, we can specify the Virtual network, VM resource group and other resources of the target region.

Picture showing the Advanced settings tab where the virtual network, resource group and other resources of the target region is specified

Click on the Review + Start replication.

Picture showing the Review screen before the replication will start

Finally, click on the Start Replication button. The replication process will start and will take around 10-15 minutes to complete. Once the replication process is completed, you can see that new resource groups and recovery services vaults are created for the target region.

Picture showing the resource group of the target region

Picture showing the recovery services vault of the target region

Again, go to the Disaster Recovery tab of the virtual machine. You can see that the field Status has 0% synchronized. You have to wait for another 10 mins to synchronize it completely.

Picture showing the synchronization status of replication between the source and target region

Once the synchronization is completed, the status is changed to Protected.

Picture showing the replication status as protected once the replication between source and target region is completed

Now you are ready to invoke a test failover.

Invoke A Failover

To Invoke a failover, click on the Failover or Test failover. When the failover is invoked, actually a virtual machine is created at the target location. Once you click on the button, another screen will appear.

Picture showing a screen to initiate the test failover of the virtual machine

Enter all the information and click on the Ok button. Once the failover process is completed (in approx. 10 mins), a new virtual machine is created at the target location.

Picture showing the additional virtual machine created when the test failover process is completed

Clean The Failover

The final step is to clean the failover. It means that you are done with your testing and the virtual machine created in the target region must be deleted. The cleaning step of failover is invoked by clicking the Cleanup test failover button.

Picture showing the clean test failover button for reversing the process of failover

Another screen will appear to enter the information. Once all the information is filled in, click on the Ok button.

Picture showing the screen to initiate the test failover cleanup

Once the cleaning is completed, the virtual machine is deleted from the target region.

Picture showing the virtual machine that was created during the failover process is deleted

Posted By -	Karan Gupta

Posted On -	Monday, April 26, 2021

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