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World Journal of Engineering Research and Technology

An ISO 9001:2015 Certified International Journal.

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

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Indexing

Abstract

RELIABILITY MEASURES OF A COMPUTER SYSTEM WITH SOFTWARE REDUNDANCY SUBJECT TO MAXIMUM REPAIR TIME

V. J. Munday* and Permila

ABSTRACT

In this paper, the authors are concentrated on the reliability measures of a computer system with software redundancy by introducing the concepts of maximum repair time. The system fails independently from normal mode. All the repair activities such as hardware repair, software up-gradation and hardware replacement are carried out by a single server immediately on need basis. The hardware component is replaced after a pre-specific time‘t’ (called maximum repair time) by new one when server fails to get its repair. All random variables are statistically independent. The negative exponential distribution is taken for the failure time of the component while the distributions of repair time, up-gradation time and replacement time are assumed arbitrary with different probability density functions. Semi-Markov process and regenerative point technique are used for obtaining the values of various performance measures. The behaviour of some important performance measure has been examined for different parameters and costs. The profit comparison of the present model has also been made with that of the model analyzed by Munday and Malik (2015).

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