Windows nt clusters for Availability and Scalabilty




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Windows NT Clusters for Availability and Scalabilty

Rob Short, Rod Gamache, John Vert and Mike Massa

Microsoft Corporation



Abstract

We describe the architecture of the clustering extensions to the Windows NT operating system. Windows NT clusters provide three principal user visible advantages: improved availability by continuing to provide a service even during hardware or software failure. Increased scalability by allowing new components to be added as system load increases. Lastly, clusters simplify the management of groups of systems and their applications by allowing the administrator to manage the entire group as a single system. In this paper we first describe the high level goals for the design team, and some of the difficulties making the appropriate changes to Windows NT. We then provide an overview of the structure of the cluster specific components and discuss each component in more detail before closing with a discussion of some possible future enhancements.


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Windows nt clusters for Availability and Scalabilty

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