AWS Architecture Blog
Creating an organizational multi-Region failover strategy
AWS Regions provide fault isolation boundaries that prevent correlated failure and contain the impact from AWS service impairments to a single Region when they occur. You can use these fault boundaries to build multi-Region applications that consist of independent, fault-isolated replicas in each Region that limit shared fate scenarios. This allows you to build multi-Region […]
Improving Performance and Reducing Cost Using Availability Zone Affinity
April 2025: This blog post has been updated to include new features in Elastic Load Balancing (ELB). One of the best practices for building resilient systems in Amazon Virtual Private Cloud (VPC) networks is using multiple Availability Zones (AZ). An AZ is one or more discrete data centers with redundant power, networking, and connectivity. Using […]
