Clustering is the
use of multiple computers typically PCs or UNIX work stations , multiple
storage devices and redundant interconnections, to form what appears to users
as a single highly available system. Clustering is the term used to describe
the means of connecting multiple computers so that they behave as a single
unit. In a computing cluster individual processors function as an integrated
computing resource. Combining multiple computers to form one computing unit as
the benefits of increased computing power, and ensuring high availability of
computing resources by the elimination of single points of failure, and the
ability to balance loads on the resources available. To users and applications,
the clusters feel and behave like a single, very power computer. Cluster
computing is therefore is the use of clustered systems to run applications. Key
components of the clustered system are the number of nodes (computers)
involved, the means of connecting them together (the hardware and communication
protocols used), and the manner in which the nodes access resources (memory,
disk) within the cluster.
By
Smirthi Prema
Kongu Engineering College, Erode
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