Chapter 5. Designing for and Implementing High Availability
In this chapter, we will introduce some key design principles and approaches to achieving high availability in your applications deployed on the AWS cloud. As a good practice, you want to ensure that your mission-critical applications are always available to serve your customers. The approaches in this chapter will address availability across the layers of your application architecture including availability aspects of key infrastructural components, ensuring there are no single points of failure. In order to address availability requirements, we will use the AWS infrastructure (Availability Zones and Regions), AWS Foundation Services (EC2 instances, Storage, Security and Access Control, ...
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