Cost Analysis of a Two-Unit Cold Standby System Considering Hardware, Software Failures and Inspection with Maximum Repair Time
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10.5120/ijca2015906910 |
M A W Mahmoud, M Y Haggag and Abd A E B Elghany. Article: Cost Analysis of a Two-Unit Cold Standby System Considering Hardware, Software Failures and Inspection with Maximum Repair Time. International Journal of Computer Applications 129(5):1-8, November 2015. Published by Foundation of Computer Science (FCS), NY, USA. BibTeX
@article{key:article,
author = {M.A.W. Mahmoud and M.Y. Haggag and A.E.B. Abd Elghany},
title = {Article: Cost Analysis of a Two-Unit Cold Standby System Considering Hardware, Software Failures and Inspection with Maximum Repair Time},
journal = {International Journal of Computer Applications},
year = {2015},
volume = {129},
number = {5},
pages = {1-8},
month = {November},
note = {Published by Foundation of Computer Science (FCS), NY, USA}
}
Abstract
The present paper deals with a reliability model of a two unit cold standby system that exposed to two types of failures. In each unit there are hardware and software componentes work together and fail independently. there is a single server who visits the system immediately when required. The server inspects the unit in case of software failure and decides either to repair or replace it. The h/w components undergo for repair at their failure and are replaced by new one in case of arriving to maximum repair time. All time distributions are considered to be exponential. Various measures of reliability of the system are obtained using regenerative point technique. Finally simulation study is done to illustrate the results.
References
- A. K. Barak and S. C. Malik. Cost-benefit analysis of a computer system with priority to preventive maintenance over hardware repair subject to maximum operation and repair times. Indian Journal of Science and Technology, 6(3):4226– 4234, 2013.
- M. A. Friedman and P. Tran. Reliability techniques for combined hardware/software systems. Annual Reliability and Maintability Symposium, pages 290–293, 1992.
- A. Kumar and S. C. Malik. Profit analysis of a computer system with priority to software replacement over hardware repair subject to maximum operation and repair times. International Journal of Engineering Science and Technology, 3(10):7452–7468, 2011.
- A. Kumar and S. C. Malik. Reliability modeling of a computer system with priority to s/w replacement over h/w replacement subject to mot and mrt. International Journal of Pure and Applied Mathematics, 80(5):693–709, 2012.
- A. Kumar and S. C. Malik. Stochastic modeling of a computer system with priority to pm over s/w replacement subject to maximum operation and repair times. International Journal of Computer Applications, 43(3):27–34, 2012.
- M. A. W. Mahmoud. Probabilistic analysis of a standby system under hardware and human error failures. J. Faculty of Education, Ain Shams University, 20:801–806, 1995.
- M. A.W. Mahmoud, M. M. Mohie El Din, and M. E. Moshref. Optimum preventive maintenance for a 2 unit priority standby system with patience time for repair. Optimization, 29:361– 379, 1994.
- M. A. W. Mahmoud and M. A. Esmail. Stochastic analysis of two unit warm standby system with slow switch subject to hardware and human error failures. Microelectron. Reliab, 38:1639–1644, 1998.
- M. A. W. Mahmoud and M. E. Moshref. On a two-unit cold standby system considering hardware, human error failures and preventive maintenance. Mathematical and Computer Modelling, 51:736–745, 2010.
- S. C. Malik, A. K. Dhankhar, and J. K. Sueria. Stochastic analysis of a system with replacement of unit and server subject to inspection. International Journal of Agricultural and Statistics Sciences, 11(1):81–87, 2015.
- S. R.Welke, S.W. Labib, and A. M. Ahmed. Reliability modeling of hardware/software system. IEEE Transactions on Reliability, 44(3):413–418, 1995.
Keywords
Cold Standby System, Maximum Repair Time, Inspection, Replacement, Profit Gain