Building robust, highly available applications often requires deploying across multiple geographic regions. By distributing infrastructure and services across AWS regions, you can achieve lower latency through proximity, protect against outages, and maintain uptime even if an entire region goes offline. In this tutorial, we will walk through the key considerations for developing a multi-region application architecture on Amazon Web Services. We will explore the motivations for going multi-region, examine common architecture patterns like active-active and active-passive, discuss best practices for databases, storage, compute, networking, and more. Following the strategies outlined in this guide will help you maximize availability while providing low-latency access to users around the world. By the end of this tutorial, you will understand the components needed to build, connect, and run a highly redundant application across multiple AWS regions.
Motivations for Multi-Region
There are several potential benefits to running your application across multiple AWS regions:
High Availability — If an entire region goes down, your application can failover to another region and remain available. This protects against rare but major outage events.
