What Is an AZ?
AZ
An availability zone (AZ) is a physical region where resources use independent power supplies and networks. AZs are physically isolated but interconnected through an internal network.
There are multiple AZs in each region. If one AZ becomes faulty, other AZs in the same region continue to provide services.
AZs in the same region can communicate with each other through an internal network.
Selecting an AZ
You can select an AZ when you are purchasing an ECS. After the ECS is created, the AZ cannot be changed. If there is only one AZ displayed in a region, it means the region only provides one AZ.
Regions and AZs FAQs
- What Is an AZ?
- What Is a Region?
- Are Products Different in Different Regions?
- Is Data Transmission Between AZs Billed?
- Can I Change the Region for a Purchased ECS?
- Can a Load Balancer Distribute Traffic to ECSs in Different Regions?
- Can Components Contained in an Application Be Distributed to Different Regions?
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