Related Concepts
Region and AZ
A region refers to the physical location of an ECS. ECSs can be created in different regions so that applications can be designed to meet specific user requirements, reduce network latency, or comply with local laws or regulations.
An availability zone (AZ) is a physical region where resources use independent power supply and networks. AZs in the same region can communicate with each other through the internal network and provide cost-effective and low-latency network connections. AZs are physically isolated from each other. An AZ is not adversely affected by another faulty AZ because each AZ uses independent power supply and networks. Therefore, you can create your ECSs in multiple AZs to ensure that your applications in one AZ will not be adversely affected by a fault in another AZ.
Previous
