Does Elastic DRS failback only copy the delta when restoring to the original server?

Question

I've found a references to the mass failback client for DRS supporting delta changes when failing back to VMWare: https://youtu.be/7sxL8Oy4EpE?t=270. My question is, does the ISO failback client also support just copying the changes back when doing a failback to the original server that was failed over to in AWS?

Aamir_H · Answer

Yes, if you Failback using ISO to same original server then replication will sync only delta changes which happened on AWS Recovery server.

However, there is a feature in AWS DRS called "Non-disruptive failback testing" through which you can Failback to a different new server and in this case, entire data from AWS Recovery server will be sync'ed back to the new server.

(-) https://aws.amazon.com/disaster-recovery/when-to-choose-aws-drs/?cloud-endure-blogs.sort-by=item.additionalFields.createdDate&cloud-endure-blogs.sort-order=desc#:~:text=Non%2Ddisruptive%20failback%20testing

(-) https://docs.aws.amazon.com/drs/latest/userguide/failback-failover-notes.html

Does Elastic DRS failback only copy the delta when restoring to the original server?

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