Basic Concepts

Namespace

A namespace is a collection of all resources (traffic input, multi-active areas, data synchronization records, and monitoring information) for a MAS instance. You can create a namespace for each system (such as OA and payment systems) to isolate resources for security and efficiency.

Instance

An instance is the minimum resource unit provided by MAS.

A MAS instance is an independent resource space where all operations are performed. Resources of different instances are isolated from each other. You can use one or more MAS instances as required.

AZ

An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters. AZs within a region are interconnected using high-speed optical fibers to support cross-AZ high-availability systems.

For maximum availability, deploy the MAS instance in multiple AZs. For minimum latency, deploy the MAS instance in the same AZ. The selected AZs must match your deployment architecture.