Windows Clustering Technologies:
Clustering refers to linking two or more Computer systems together to handle a service or variable workloads and common tasks or to provide continued operation in the event one PC Computer fails. Clustering allows for fault tolerance beyond a single PC Desktop RAID Solution. The use of a cluster enhances both service availability and scalability of the Operating System providing the service.
Each computer may be a multiprocessor system itself. For example, a cluster of four computers, each with four CPUs, would provide a total of 16 CPUs processing simultaneously.
Defining a Cluster in Windows 2000:
Quoting Microsoft, "A cluster is a group of independent computers that work together to run a common set of applications and provide the image of a single system to the client and application. The computers are physically connected by cables and programmatically connected by cluster software. These connections allow computers to use fail over and load balancing, which is not possible with a stand-alone computer.
Network Load Balancing provides a software solution for clustering multiple computers running Windows 2000 Advanced Server that provide networked services over the Internet and private intranets."
"A typical HCL-compliant Cluster contains the following components:
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Web Development, Gill Boyd & Team - Posted 12/14/2001; Updated 07/01/2003