¶ Regions and AZ (Availability Zones)
¶ Regions
Regions are cluster of data centers, usually in a city. us-east-1 (Viginia), us-east-2 (Ohio), es-west-1
Most services are region-scoped.
¶ How do you choose an AWS Region?
- Compliance - Do you need to have infrastructure in a specific country to satisfy a compliance order that no data can leave the state/country?
- Proximity to customers to reduce latency
- Available Services - Need to pick a region that has the services you need, as not all service are avaiable in all regions.
- Pricing - Pricing can vary from region to region.
¶ AZ - Availability Zones
- Each region can have between 2 to 6 availability zones. An AZ can have one or more data centers.
- Each AZ has redundant power, networking and connectivity
- They are separate from eahother, so that they're isolated from disasters.
- They're connected via high bandwidth, ultra-low latency connectivity.
- An outage in ap-southeast-2a can't impact ap-southeast-2b for example.
AWS has 216 points of Presence with 205 edge locations