Infrastructure

• https://aws.amazon.com/about-aws/global-infrastructure/regions_az/
• AWS was launched for public in 2004
• First services were SQS, S3 and EC2

Regions

• A cluster of data centers in a geographic area

• Things to consider before choosing a region

• Data compliance: data governance & legal requirements
• Proximity: reduces latency
• Available services: not all servies are available in all regions

• Pricing: prices vary from region to region

• Examples

• us-east-1 (Northern Virginia)
• eu-west-3 (Paris)
• sa-east-1 (São Paulo)
• ap-southeast-2 (Sydney)

Availability Zones

• Each region has some availability zones
• Usually 3, min 2, max 6
• The AZ is a (one or more) discrete data center with redundant power, networking and connectivity
• The AZ is designed to be independent (good for cases of failure)

• Different AZ within a region are connect with high bandwidth and ultra-low latency network

• Example (ap-southeast-2)

• ap-southeast2a
• ap-southeast2b
• ap-southeast2c

Points of Presence (Edge Locations)

• It's like a region, but limited.
• It offers a way to serve content to the end user with the higher proximity possible (and lower latency)
• It's used for caching