Basic Concepts
Cluster Instances
TaurusDB uses a decoupled compute and storage architecture that auto-scales up to 128 TB per DB instance. A cluster DB instance contains one primary node and up to 15 read replicas which can be created in minutes.
Single-Node Instances
A single-node instance contains only one primary node and there are no read replicas. Single-node instances do not involve data synchronization between nodes and can easily ensure atomicity, consistency, isolation, and durability of transactions.
Instance Specifications
Each instance is configured with compute and memory resources, for example, 16 vCPUs and 64 GB.
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.
- A region is a geographic area where physical data centers are located. Each region is isolated from the other regions, improving fault tolerance and stability. After a resource is created, its region cannot be changed.
- An AZ is a physical location where resources use independent power supplies and networks. 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 shows the relationship between regions and AZs.
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.
