Achieving high availability in AWS is critical to ensure that your applications and services remain accessible and operational even in the face of failures or disruptions. AWS offers several strategies and services that help you design and implement highly available architectures. Here are some key strategies and services used to achieve high availability in AWS:
1. Multi-Availability Zone (AZ) Deployments:
AWS provides the concept of Availability Zones, which are physically separate data centers within a region. Deploying your resources across multiple AZs helps achieve high availability by distributing your workload and data across redundant infrastructure. By utilizing load balancers, auto scaling groups, and database replication across multiple AZs, you can ensure that your applications can withstand failures in a single AZ without any interruption to service.
2. Elastic Load Balancing (ELB):
ELB automatically distributes incoming traffic across multiple EC2 instances, containers, or IP addresses within your application. It improves availability by eliminating the single point of failure and enables automatic scaling as your application traffic fluctuates. AWS offers three types of load balancers: Classic Load Balancer (CLB), Network Load Balancer (NLB), and Applicati....
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