Performing a failback

Failback is the act of redirecting traffic from your recovery system to your primary system. This is an operation that is performed outside of AWS Elastic Disaster Recovery. AWS Elastic Disaster Recovery assists you in performing the failback by ensuring that the state of your primary system is up to date with the state of your recovery system.

Failback is only supported to non-AWS environments that can boot up from an ISO. For non-AWS environments which do not support ISO boot, it is suggested to convert the ISO to a suitable format. Examples - Building DR on AWS with Microsoft Azure and Building DR on AWS with Google Cloud. These blog posts are not maintained or supported by AWS Premium Support and guidance for these are provided on a best effort basis.

Before performing a failback, you want to make sure that any data that was written to your failover systems during the failover is replicated back to your original systems before you perform the actual failback and redirecting users to your primary systems. AWS Elastic Disaster Recovery helps you prepare for failback by replicating the data from your Recovery instances on AWS back to your source servers with the aid of the Failback Client.