Below are definitions of common cluster jargon. The portion of time a system is usable. Availability is generally expressed as a percentage. A combination of hardware and software that enables you to connect two or more servers, which thereafter act as a single system. The cluster is typically connected to a shared disk storage system.
Clusters provide end users continuous access to cluster resources.
When a cluster server fails, the services and applications it was providing are distributed to the surviving cluster servers. Cluster Node . Synonym for cluster server . The data volumes, applications, services, and licenses that run on cluster nodes. A server that has been grouped together with other servers to comprise a cluster .