When two or more MS SQL servers exist in an environment, they can be grouped together to form a SQL cluster. Requests to a cluster are routed through a virtual cluster server that is assigned a cluster IP address and TCP port. Requests to this server can be handled by any of the individual nodes in the cluster at any given point in time, depending on which node is active at that time.
Since clusters are deployed in environments where 24*7 availability and responsiveness are critical, it is imperative that the performance of the clusters is monitored all the time. The eG Enterprise aids administrators in this regard!