Controller node: The control node is the physical host responsible for management functions in the cluster. Typically, the first three hosts to join a cluster are designated as control nodes, collectively forming the "control node pool." The control nodes run cluster management services, configuration services (such as databases, virtual machine scheduling, status centers, etc.).

Cluster Controller node: The master node is a specific node elected from the control node pool, and it serves as the management core of the entire cluster. Users can manage the resources of the entire cluster centrally by configuring the cluster IP on the master node.

Resource Pool: A resource pool is a collection that logically abstracts and integrates configurable infrastructure resources such as compute, storage, network, and security in a cloud computing environment. It provides users with a unified, on-demand resource foundation.

Cluster Network: The cluster network refers to a series of logically isolated network planes used to ensure reliable communication between various components within the cluster. It mainly includes four network planes: management, business communication, data communication (VXLAN), and storage. The platform supports network interface multiplexing functionality, allowing the traffic of management, business, and data communication networks (VXLAN) to be multiplexed over the same physical aggregation port (three-network multiplexing). In certain hardware conditions, it even supports the multiplexing of all four networks, including the storage network.

SCP: SCP (Sangfor Cloud Platform) is a comprehensive, safe and reliable cloud management platform that can manage HCI clusters and VMware clusters across regions and associate the managed clusters with resource pools to realize the management of multiple resource pools. The platform provides basic services such as virtual machines, multi-tenant management, VPC, elastic IP, and enterprise private lines through products and services, reliability center, operation center, application center, and monitoring center. It also integrates reliability services such as backup, disaster recovery, and monitoring centers into the platform, reducing the difficulty of operation and maintenance and ensuring business continuity and reliability.

HA: This function provides high-availability services for virtual machines. When any one of the node's hardware, storage, or network fails, the HA mechanism will automatically restore the virtual machine (including virtual network devices) to run on other nodes to ensure business continuity.

DRS: DRS is a core feature of the Sangfor HCI platform, designed to automatically optimize the allocation of computing resources within the cluster to ensure business performance and improve resource utilization.