How Do I Select a GaussDB(DWS) Region and AZ?

Updated on 2025-06-12 GMT+08:00

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A region and availability zone (AZ) identify the location of a data center. You can create resources in regions and AZs.

Regions are defined in terms of geographical location and network latency. Each region has its own shared public services (ECS, EVS, OBS, VPC, EIP, and IMS). Regions are either common or dedicated. A common region provides common cloud services available to all tenants. A dedicated region provides services of a specific type or only for specific tenants.
An AZ contains one or more physical data centers. Each AZ has its own independent power source, network, and cooling. The computing, network, storage, and other resources in an AZ can be logically divided into multiple clusters. AZs in a region are interconnected through high-speed optic fiber, so systems deployed across AZs can achieve higher availability.

When selecting a region, consider the following:

Consider your requirements for DR and network latency when selecting an AZ:

Deploy resources in different AZs in the same region to improve DR.
For an application that requires an extremely low latency, deploy all its resources in the same AZ.

When you use resources with API calls, you must specify the regional endpoint. Obtain the regions and endpoints from the enterprise administrator.

Parent topic: Product Consulting

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