Multiple nodes are interconnected through switches to form a cluster. A cluster integrates all nodes' storage resources and provides external service as a whole.
The use of a clustered system serves the following purposes:
- In normal cases, multiple nodes in the clustered system simultaneously process workloads. If a node fails, other nodes automatically take over workloads from that failed node, thereby maintaining business continuity.
- The clustered system evenly distributes workloads across all nodes to bring resources into full play and prevent a certain node from being overloaded, thereby improving system efficiency and performance.
- The clustered system's performance increases along with an increasing number of nodes, ensuring high scalability of performance and capacity and meeting customers' increasing application requirements.