While trying to figure out how many data centers there are in AWS, we should try to understand the way to build infrastructure that would be able to provide such a large-scale amount of computing capacity for the Internet.
Besides calculating the total number of independent data centers, AWS infrastructure can be described by means of defining such concepts as regions, availability zones, and edge locations. Thus, we end up with an enormous network of cloud providers operating across the globe.
Content
Description of AWS Data Center Scale
Explanation of AWS Regions and Availability Zones
So, How Many AWS Data Centers Are There Then?
Major Data Centers in AWS Around the World
Edge Locations and Local Zones
Types of Services Available in AWS Data Centers
Multi-Availability Zones – Why?
Comparison of AWS Infrastructure with Infrastructures of Other Cloud Providers
AWS Power, Energy Consumption, and Sustainability
Reasons for Growing AWS Infrastructure
Conclusion on Understanding the Data Center Scale of AWS
Description of AWS Data Center Scale
Data center network provided by AWS is one of the largest in the world.
Usually, AWS is building its own infrastructure but there are cases when colocation facilities are used for deploying resources to particular areas.
Such infrastructure consists of a number of regions which include a few availability zones in turn, each of which includes several data centers.
Thus, AWS is capable of creating a scalable environment with a maximum level of performance and reliability.
Explanation of AWS Regions and Availability Zones
A region in AWS is a geographical area used by Amazon Web Services for building its cloud infrastructure.
Each region is composed of at least 3 availability zones but sometimes there can be more than 3 zones. All these AZs are separated from each other yet interconnected by ultra-fast communication channels.
AZs in AWS are not just separate data centers. Rather, they are such clusters of data centers that include:
Independent power sources
Specialized security measures
Ultra-fast internal connections between data centers within an availability zone
This ensures that failure of one availability zone does not affect the operation of other AZs.
So, How Many AWS Data Centers Are There Then?
There is no definite number of data centers operated by AWS. But there are estimates according to which AWS currently owns around 900 separate data centers.
There are over 30 AWS regions and over 100 availability zones and therefore it means that there are far more data centers than either regions or availability zones. This is because one AZ consists of a few data centers.
Major Data Centers in AWS Across the Globe
Today AWS has one of the largest and most extensive cloud infrastructures around the world.
It includes such regions as:
US-East (Northern Virginia)
US-West (Northern California)
Europe (Ireland, Frankfurt, London)
Asia-Pacific (Singapore, Tokyo, Mumbai)
South America (São Paolo)
Also, there are plans for establishing additional regions in the near future as well as launching initiatives like "European Sovereign Cloud".
Edge Locations and Local Zones
All AWS data centers are not necessarily regular data centers.
Instead, there are special data centers like:
Edge locations
Local zones
These data centers serve other purposes compared to regular data centers and usually have a completely different configuration.
They are mostly needed for running CDN infrastructure and delivering other types of low-latency applications.
AWS Data Centers and Services They Provide
AWS data centers house a variety of services used by all types of customers around the globe.
Among them are:
Elastic block storage services
AWS Lambda
AI and machine learning services
Networking and database systems
AWS development and enterprise platforms
And others.
Why AWS Needs Multiple Availability Zones
One of the core purposes of AWS is ensuring high availability of its services.
To accomplish that task, AWS infrastructure is structured in such a way that allows spreading workload between AZs to:
Guarantee availability of systems
Redirect traffic when necessary
Minimize the downtime.
This ensures maximum performance and reliability.
Comparing AWS to Other Cloud Providers
As we know, AWS has the largest cloud infrastructure compared to other cloud providers.
Together with AWS, such cloud providers as Microsoft Azure and Google Cloud operate on the same principle of creating regions and availability zones. Still, AWS has more AZs and regions than other providers do. Thus, it is possible to ensure:
High performance
Competitive prices for services
Maximum availability
Hybrid cloud functionality
AWS Power, Energy Consumption, and Sustainability
Having a lot of data centers AWS consumes a considerable amount of energy.
Nevertheless, AWS uses natural resources wisely and launches such projects as:
Wind energy initiatives
Solar power stations
Energy efficient data centers
Thus making it possible for AWS to balance energy consumption with the amount of generated renewable energy.
Reasons for the Growing AWS Infrastructure
AWS cloud infrastructure constantly expands along with the growth in cloud technologies usage.
The key drivers for expansion of AWS infrastructure are the following:
Growth of artificial intelligence and machine learning adoption
Growing popularity of cloud-based applications
Growing number of Internet users
Need for fast services
The flexibility of AWS infrastructure allows AWS to constantly expand its network in any desired direction.
Conclusion
In this case, AWS does not estimate its infrastructure in numbers of individual buildings.
Instead, AWS describes its data center infrastructure with such parameters as regions, availability zones, and edge locations.
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