What Are Regions and AZs?
Regions and AZs
A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.
- Regions are divided based on geographical location and network latency. Services, such as ECS, EVS, OBS, VPC, Elastic IP (EIP), and Image Management Service (IMS), can be shared within the same region. There are two types of regions: universal and dedicated. A universal region provides cloud services for all tenants. A dedicated region only provides a certain type of services or only provides services for specific tenants.
- An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-control, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters.
Region Selection
You are advised to select a region close to you or your target users. This reduces network latency and improves the access success rate.
AZ Selection
When determining whether to deploy resources in the same AZ, consider your application's requirements for disaster recovery (DR) and network latency.
- To prioritize DR capabilities, deploy resources in different AZs in the same region.
- To prioritize network latency, deploy resources in the same AZ.
Regions and Endpoints
Before using an API to call resources, you will need to specify the resource region and endpoint. For details, see "Endpoints" in Cloud Search Service API Reference.
General Consulting FAQs
- What Are Regions and AZs?
- How Does CSS Ensure Data and Service Security?
- Which CSS Metrics Should I Focus On?
- What Storage Options Does CSS Provide?
- What Is the Maximum Storage Capacity of CSS?
- How Can I Manage CSS?
- Which Elasticsearch Versions Does CSS Support?
- How Can I Access CSS?
- What Can the Disk Space of a CSS Cluster Be Used For?
- How Do I Check the Numbers of Shards and Replicas in a Cluster on the CSS Console?
- Can I Modify the TLS Algorithm of an Elasticsearch Cluster?
- What VM Specifications Does CSS Support?
- Can I Use the CSS Cluster Data as a Data Source?
- What Data Compression Algorithms Does CSS Use?
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