What Are Regions and AZs?

A region or an availability zone (AZ) identifies the location of a data center. You can create resources in a specific region or an AZ.

• A region is a physical data center, which is completely isolated to improve fault tolerance and stability. After a resource is created, its region cannot be changed.
• An AZ is a physical location with independent power supplies and network in a region. A region can contain multiple AZs, which are physically isolated but interconnected through internal networks. This ensures the independence of AZs and provides low-cost and low-latency network connections.

Figure 1 Regions and AZs

Huawei Cloud provides services in many regions worldwide. You can select a region and AZ as required. For more information, see Global Products and Services.