Exploring global versus regional services
When designing multi-region architectures on AWS, it’s essential to understand the distinction between regional and global AWS services, as they play different roles in enabling resilience and ensuring consistent behavior across regions.
Regional services are deployed and operate within a specific AWS region. Examples of regional services include Amazon EC2, Amazon Elastic Block Store (EBS), Amazon Relational Database Service (RDS), and Amazon ELB. These services are designed to be highly available within a region but are isolated from other regions. In a multi-region architecture, regional services must be deployed and managed separately in each region where the application or service needs to operate.
Global services, on the other hand, are designed to operate seamlessly across multiple AWS regions. These services provide consistent experience and functionality regardless of the region from which they are accessed. Examples of...