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Reseach Article

Profit Analysis of a Computer System with H/W Repair and S/W Replacement

by S.c. Malik, J.k.sureria
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 47 - Number 1
Year of Publication: 2012
Authors: S.c. Malik, J.k.sureria
10.5120/7152-9856

S.c. Malik, J.k.sureria . Profit Analysis of a Computer System with H/W Repair and S/W Replacement. International Journal of Computer Applications. 47, 1 ( June 2012), 19-26. DOI=10.5120/7152-9856

@article{ 10.5120/7152-9856,
author = { S.c. Malik, J.k.sureria },
title = { Profit Analysis of a Computer System with H/W Repair and S/W Replacement },
journal = { International Journal of Computer Applications },
issue_date = { June 2012 },
volume = { 47 },
number = { 1 },
month = { June },
year = { 2012 },
issn = { 0975-8887 },
pages = { 19-26 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume47/number1/7152-9856/ },
doi = { 10.5120/7152-9856 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:40:47.127976+05:30
%A S.c. Malik
%A J.k.sureria
%T Profit Analysis of a Computer System with H/W Repair and S/W Replacement
%J International Journal of Computer Applications
%@ 0975-8887
%V 47
%N 1
%P 19-26
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The main intension of this paper is to make profit analysis of a computer system of two identical units in which one unit is operative and other is kept as cold standby. In each unit, h/w and s/w components fail independently from the normal mode. A single server visits the system immediately whenever needed to carry out repair and replacement of the components. If there is a h/w failure in the unit, then that unit goes immediately under repair. However, only replacement of the s/w in the unit is made by new one whenever s/w fails to meet out the requirements. The failure time of the unit is exponentially distributed while the distributions of repair rate of h/w and replacement rate of the s/w are taken as arbitrary with different probability density functions (pdf). The expressions for several reliability characteristics are derived by making use of semi-Markov process and regenerative point technique. Graphs are drawn for a particular case to highlight the behaviour of some measures of system effectiveness. The results of the present model have also been compared with the results obtained for the model proposed by Malik and Anand [4].

References
  1. Friedman, M. A. and Tran, P. (1992): Reliability techniques for combined hardware / software systems. Proceedings of Annual Reliability and Maintainability Symposium, pp. 209-293.
  2. Welke, S. R. ; Johnson, B. W. and Aylar, J. H. (1995): Reliability modeling of hardware /software systems, IEEE Transactions on Reliability, Vol. 44, No. 3, pp. 413-418.
  3. Lai, C. D. ; Xie, M. ; Poh, K. L. ; Dai, Y. S. andYang, P. (2002): A Model for Availability Analysis of Distributed Software / Hardware Systems, Information and Software Technology,Vol. 44, pp. 343-350.
  4. Mailk, S. C and Anand, Jyoti (2010):Reliability and Economic Analysis Of a Computer System with Independent Hardware and SoftwareFailures. Bulletin of Pure and Applied Sciences. Vol. 29E (No. 1), pp. 141-153.
Index Terms

Computer Science
Information Sciences

Keywords

Computer System Independent Failure Of H/w And S/w Repair Replacement And Profit Analysis