Resources supported for zonal shift and zonal autoshift - Amazon Route 53 Application Recovery Controller

Resources supported for zonal shift and zonal autoshift

Amazon Route 53 Application Recovery Controller currently supports the following resources for zonal shift and zonal autoshift:

  • Network Load Balancers

  • Application Load Balancers

Load balancing resources that are supported are automatically registered with Route 53 ARC so you can use them with zonal shift (and zonal autoshift). You can start a zonal shift for a load balancer in the Elastic Load Balancing console (in most AWS Regions) or in Route 53 ARC.

Review the following conditions for working with zonal shifts and resources in Route 53 ARC:

  • Zonal shift isn't supported with cross-zone load balancing. For a load balancer to be registered with Route 53 ARC, make sure that you've turned off cross-zone load balancing for the load balancer in Elastic Load Balancing.

  • in a few specific scenarios, zonal shift does not shift traffic from the AZ. For example, if the load balancer target groups in the AZs don't have any instances, or if all of the instances are unhealthy, then the load balancer is in a fail open state and you can't shift away one of the AZs.

  • Both public and internal (private) Network Load Balancers and Application Load Balancers are supported.

  • A resource must be active and fully provisioned to shift traffic for it. Before you start a zonal shift for a resource, check to make sure that it's a managed resource in Route 53 ARC. For example, you can view the list of managed resources in the AWS Management Console, or you can use the get-managed-resource operation with the resource's identifier.

  • Zonal shift isn't supported for Application Load Balancers that are endpoints of accelerators in AWS Global Accelerator.

  • When an Application Load Balancer is the target of a Network Load Balancer, start the zonal shift from the Network Load Balancer. If you start the zonal shift from the Application Load Balancer, the Network Load Balancer doesn't stop sending traffic to the Application Load Balancer and its targets.

  • The resource for a zonal shift must be a managed resource that has been registered with Route 53 ARC by an AWS service. Elastic Load Balancing automatically registers with Route 53 ARC Network Load Balancers and Application Load Balancers with cross-zone load balancing turned off.

  • To start a zonal shift with a resource, it must be deployed in the Availability Zone and AWS Region where you start the shift. Make sure that you start a zonal shift in the same Region that the AZ for the shift is in, and that the resource you're shifting traffic for is in the same AZ and Region as well.

  • Make sure that you have the correct IAM permissions to use zonal shift with a resource. For more information, see IAM and permissions for zonal shift.