Clusters provide high availability for applications and services installed on clustered servers. High availability means ...

Clusters provide high availability for applications and services installed on clustered servers. High availability means that if a server fails while hosting an application or a service, another server in the cluster takes over, which minimizes service interruptions. Regardless of which server currently hosts an application or service, clients always access the application or service using a highly available server name. New LUNs assigned to clusters must be associated with a highly available server through which they will be available.