Fail back to AWS from Azure Site Recovery

Question

Fail back to AWS from Azure Site Recovery

Syed Zubair 21

We a implementing a solution where we are replicating EC2 Instances (VMs) from AWS to Azure using Azure Site Recovery. Please note we are not migrating to Azure and would only want to set up the replication from AWS to Azure for Disaster Recovery purposes.

As per the article -

AWS instances are treated like physical, on-premises computer.

Once we have setup everything like enabling replication, we should be able see the replicated VMs in Replicated Item on ASR. As per my understanding, when we run a failover, Azure VMs are created from replicated data in Azure storage.
Now when the primary AWS site is available again, what happens when we want to fail back to AWS.

As we are treating/considering AWS Instances as Physical, as per the article

"Failback from Azure to an on-premises physical server isn't supported. You can only fail back to a VMware virtual machine”

Now the question is ‘Will we be able to Failback to the primary AWS site like the way we can fail back to VMware’?

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SadiqhAhmed-MSFT 49,331 Microsoft Employee Moderator

Only failover is supported for AWS machines. As you have already mentioned in quotes above, failback is not supported for AWS machines using Azure Site Recovery.

As long as Azure receives data from AWS machines, it will process it to make recovery points and those points would be available for you to failover to Azure enabling business continuity. In your case specifically, you can failover to Azure but going back to AWS will not be an option through Azure Site Recovery.

If an Answer is helpful, please “Accept Answer” or Up-Vote for the same which might be beneficial to other community members reading this thread.

Jayesh Sawant 81 Reputation points

2021-08-04T18:07:47.353+00:00

Thanks for you comment on this question.

I agree with ASR such scenario is not possible.

i am having same scenario where i want to replicate aws (primary site) workload to azure (DR Site) but i am not sure such replication is possible.

I am planning to use third party tool like Zerto or Carbonite but i think Zerto also not support aws to azure DR with failover and failback.

please provide your views on it.
your help will be appreciated .
SadiqhAhmed-MSFT 49,331 Reputation points Microsoft Employee Moderator

2021-08-04T19:37:34.893+00:00

Since AWS machines are treated as on-premise machines, you can try failback as VMware VMs. See instructions from this link - https://learn.microsoft.com/en-us/azure/site-recovery/physical-to-azure-failover-failback#prepare-for-reprotection-and-failback

Note: I've personally not tested this scenario.

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Fail back to AWS from Azure Site Recovery

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