Cluster Computing



The recent advances in high-speed networks and improved microprocessor performance are making clusters or networks of workstations an appealing vehicle for cost effective parallel computing. Clusters built using commodity hardware and software components are playing a major role in redefining the concept of supercomputing.


A cluster is a type of parallel or distributed processing system, which consists of a collection of interconnected stand-alone computers cooperatively working together as a single, integrated computing resource.

This cluster of computers shares common network characteristics like the same namespace and it is available to other computers on the network as a single resource. These computers are linked together using high-speed network interfaces between themselves and the actual binding together of the all the individual computers in the cluster is performed by the operating system and the software used.

Beowulf Cluster

It's a kind of high-performance massively parallel computer built primarily out of commodity hardware components, running a free-software operating system like Linux or Free BSD, interconnected by a private high-speed network.

Motivation For Clustering
High cost of 'traditional' High Performance Computing.

Clustering using Commercial Off The Shelf (COTS) is way cheaper than buying specialized machines for computing. Cluster computing has emerged as a result of the convergence of several trends, including the availability of inexpensive high performance microprocessors and high-speed networks, and the development of standard software tools for high performance distributed computing.

Increased need for High Performance Computing

As processing power becomes available, applications which require enormous amount of processing, like weather modeling are becoming more common place requiring the high performance computing provided by Clusters.

Requirements for a server cluster:

The minimum requirements for a server cluster are two servers connected by a network; the initial release of MSCS supports clusters with two servers. A future version referred to as MSCS "phase2" will support larger clusters, and will include enhanced services to simplify the creation of highly scaleable, cluster-aware applications. MSCS is available now in Windows NT Server 4.0 Enterprise Edition.

"Wolf pack" was the code name for Microsoft Cluster Server. MSCS is a built-in feature of Window NT Server, Enterprise Edition. It is software that supports the connection of two servers into a "cluster" for higher availability and easier manageability of data and applications. MSCS can automatically detect and recover from server or application failures. It can be used to move server workload to balance utilization and to provide for planned maintenance without downtime. And, over time, MSCS will also become a platform for highly scaleable, cluster-aware applications .


Microsoft Windows NT Server, Enterprise Edition 4.0, which included MSCS 1.0, is available in English, French, German, Japanese, and Spanish. This will be available through channels is Windows NT Server, Enterprise Edition Microsoft Windows NT Server, Enterprise Edition is available to customers through all standard channels: reseller, retail, OEM, and the Microsoft Select licensing program. It will support the MSCS software is as a built-in feature of Windows NT Server 4.0, Enterprise Edition. There is currently no plan to extent cluster supports to Windows NT Workstation. MSCS software has been designed and written to closely integrate with the architecture and features of Windows NT Server, including its server-oriented networking and directory services capabilities.






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