AWS Global Infrastructure

Availability Zones as a Data Center

• Found everywhere in the world, including in a city.
• Several servers, switches, load balancing and firewalls.
• An availability zone can consist of multiple data centers

Region

• A geographical area is referred to as a region.
• Collection of data centers that are geographically separated from one another.
• Made up of more than two availability zones that are linked together.
• Metro fibres that are redundant and are separated, connect the availability zones.

Edge locations

• The endpoints for AWS content caching are known as edge locations.
• Regions aren’t the only thing that may be found in the outside. There are currently over 150 edge sites.
• AWS has a small place called an edge location that is not a region. It’s used to store content in a cache.

Regional Edge Caches

• In November 2016, AWS unveiled a new sort of edge location called a Regional Edge Cache.
• Between CloudFront Origin servers and edge locations is a Regional Edge Cache.
• At the edge site, data is taken from the cache, but data is maintained at the Regional Edge Cache.