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What Is Aws Global Infrastructure?
What is AWS Global Infrastructure?
Amazon Web Services is one of the global public cloud provider having a worldwide network of infrastructure that spans across 18 geographic Regions with 53 Availability Zones and 1 Local Region around the world, with further announced plans for 12 more Availability Zones and four more Regions in Bahrain, Hong Kong SAR, Sweden, and a second AWS GovCloud Region in the US. The main components that make up the
AWS Global Infrastructure include:
Understanding what each of these components can allow you to do will help you design a resilient, highly available, secure, and low latency solution for you and your customers.
Region is an entirely independent and separate geographical area. Each region has multiple, physically separated and isolated locations known as Availability Zones. Examples of Region include London, Dublin, Sydney, etc.
Availability zone is merely a data center or a collection of data centers. Each Availability zone in a Region has separate power, networking and connectivity to reduce the chances of two zones failing simultaneously. No two Availability zones share a data center; however, the data centers within a particular Availability zone are connected to each other over redundant low-latency private network links. Likewise, all zones in a region are linked by highly resilient and very low latency private fiber optic connections for communication. The Availability zones would be at a certain length or distance apart from each other.
Regions and Availability Zones
Edge Locations are AWS sites deployed in major cities and highly populated areas across the globe. There are many more Edge locations than there are regions. Currently, there are over 102 edge locations. Edge Locations are used by AWS services such as AWS CloudFront to cache data and reduce latency for end-user access by using the Edge Locations as a global Content Delivery Network (CDN).
Therefore, Edge Locations are mainly used by end users who are using and accessing your services. For example, you might have your website hosted within the Ohio region with a configured CloudFront distribution associated to it. When a user accesses your site from Europe, they will be re-directed to their closest Edge Location (in Europe) where cached data could be read on your website, significantly reducing latency.
What are Regional Edge Caches?
Regional Edge Caches were announced by AWS in November 2016 as a new type of Edge Location. These caches sit between the CloudFront Origin servers and the Edge Locations. Regional Edge Caches have larger cache-width than each of the individual Edge Locations. While the data expires at the Edge Locations, it is kept by the Regional Edge Caches.
Thus, the data which is no more available at the Edge Location, when requested, can be retrieved from the Regional Edge Cache instead of the Origin servers, as that would result in higher latency.
Edge Locations and Regional Edge Caches
Today, Amazon Web Services offers a highly reliable, low-cost, scalable infrastructure platform in the cloud industry that powers a vast number of businesses in 190 countries around the world. With data center locations in the U.S., Europe, Australia, Brazil, Singapore, and Japan, customers throughout all industries are gaining its benefits. If you are deploying services on AWS, you will want to have a clear understanding of each of these components, how they are linked, and how you can use them within your solution to your maximum benefit