Posted On: Oct 15, 2024

Amazon Application Recovery Controller (ARC) zonal shift and zonal autoshift have expanded their capabilities and now support Network Load Balancers (NLB) with cross-zone configuration enabled. ARC zonal shift helps you quickly recover an unhealthy application in an Availability Zone (AZ), and reduce the duration and severity of impact to the application due to events such as power outages and hardware or software failures. ARC zonal autoshift safely and automatically shifts your application’s traffic away from an AZ when we identify a potential failure affecting that AZ.

All NLB customers, with cross-zone enabled load balancers, can now shift traffic away from an AZ in the event of a failure. Zonal shift works with NLB by blocking all traffic to targets in the impaired AZ and removing the zonal IP from DNS. You need to first enable your NLBs for zonal shift using the NLB console or API, and then trigger a zonal shift or enabled autoshift via ARC zonal shift.

Zonal shift and zonal autoshift support for NLB with cross-zone configuration enabled is now available in Amazon Web Services China (Beijing) Region, operated by Sinnet, and Amazon Web Services China (Ningxia) Region, operated by NWCD.

There is no additional charge for using zonal shift. To get started, read the documentation.