AWS Region

AWS Regions

  • AWS Regions are clusters of data centers
  • Example of regions: us-east-1, eu-west-1, etc.
  • Most services provided by AWS are regions scoped. This means a data for a service used in one region is not replicated in another region

AWS Availability Zones (AZ)

  • AWS Regions are divided into availability zones
  • Each region has between 2 and 6 AZs. Usually they have 3
  • Each AZ is one or more discrete data center with redundant power, networking an connectivity
  • All AZs from a region are geographically separated from each other
  • Even if they are separated, they have high bandwidth connection between them.