Zonal autoshift practice runs take place once a week to ensure your application is ready for a zonal shift. Now with on-demand practice runs, you can trigger a practice run anytime you want to and validate your application’s preparedness. When a practice run is started, a pre-check will be performed to ensure your application has balanced capacity across AZs. This check is done for Application Load Balancers, Network Load Balancers, and EC2 Auto Scaling groups.
To get started, you can initiate an on-demand practice run in the ARC console, API, or CLI. This allows you to test your application’s practice run configuration to ensure the alarms are configured correctly and your application behaves as expected. For both automated and on-demand practice, pre-checks for balanced capacity will validate your resource’s capacity and ensure it’s safe to start the practice. If the pre-check fails, you’ll be alerted, so you can take corrective action.
Zonal autoshift on-demand practice runs and practice run pre-checks for balanced capacity are available in all commercial AWS Regions, and including AWS GovCloud (US) Regions. To learn more, please refer to the ARC zonal autoshift documentation.
Source:: Amazon AWS