AWS Global Infrastructure

• AWS Regions
• AWS Availability Zones
• AWS Data Centers
• AWS Edge Locations / Points of Presence

AWS Regions

• AWS has Regions all around the world
• A region is a cluser of data centers
• Most AWS services are region-scoped

Choosing AWS Regions

Where should I launch a new application?

Compliance

• Data governance and legal requirements
• Keep data local so that it does not leave a region without my explicit permission

Proximity

• Keep it close to customers to reduce latency

Available services

• New services are not available in every region

Pricing

• Pricing varies region to regions

AWS Availability Zones

• Each regions has many availability zones (3 to 6)

• Each AZ is one or more discrete data centers with power, netwokring, connectivity
• AZs are separate for each other, so isolated from disasters

• AZs are connected with high bandwidth, ultra-low latency networking forming a region

Region : AZ : Data Centers = 1 : N : M

AWS Points of Presence (Edge Locations)

• 400+ Points of Presence (400+ Edge Locations & 10+ Regional Caches) in 90+ cities across 40+ countries
• Cache server of CDN services like CloudFront and Route 53 irregardless of Region and Availability zones
• Content is delivered to end users with low latency

• It's too far for people in America, South Africa, and Australia too reach Korea Region

• Place edge locations (temporary data center) in those regions so that requested data are cached or copied
• Edge locations are physically close to people in those regions so contents are delivered fastly

Global Services

• IAM
• Route 53
• CloudFront
• WAF

Region-Scoped Services

• EC2
• EBS
• Lambda
• Rekognition