Design and Implementation of a Soft Real Time Fault Tolerant System
The increasing trend in use of computer systems in safety critical applications has driven the researchers to develop techniques to achieve high degree of fault tolerance. In mission critical applications like banking, satellite launching etc. a single failure may incur huge monitory loss. So far numerous techniques have been developed to impart fault tolerance in computer systems. Dual redundant systems are widely used in applications where fault tolerance is required. Although there are commercially available dual redundant fault tolerant systems, high cost and lack of customizability of those systems render them unusable in some cases. In this paper we present an implementation of a dual redundant system using low cost off-the-shelf personal computers.
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