Abstract
Reliability models for fault tolerant recovery blocks with exponential execution time are analysed. Explicit expressions for the reliability of independent recovery block, with exponential execution time are derived. The paper presents conditions for the optimal arrangement of versions within a recovery block. The paper also presents two optimisation models for the independent recovery blocks with exponential execution time. The objective is to maximise the reliability of the fault tolerant software satisfying a budget constraint and a constraint on the mean execution time of the software. Simple branch and bound procedures are developed that can be used to solve the optimisation problem.
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F. BELLI AND J. JEDRZEJOWICZ, “Reliability Modelling of Fault Tolerant Programs,” Proceedings of Fifth Iasted International Conference — Reliability And quality Control, Lugano, Switzerland, p. 53–56, 1989.
O. BERMAN AND U. DINESH KUMAR, “Optimisation Models for Recovery Block Schemes’ Working Paper, Faculty of Management, University of Toronto, Canada, 1996.
H. HECHT, ‘Fault Tolerant Software’ ‘Ieee Transactions on Reliability,’ Vol, 28. No. 3, pp.227–232, 1979.
E. KOSS, ‘Developing Reliable Space-Flight Softwares,’ Proceedings of the Annual Reliability And Maintainability Tools, 1986, p. 171–176.
B. RANDELL, ‘System Structure for Software Fault Tolerance,’ Ieee Transactions on Software Engineering, Vol. 1, No. 2, p. 220–231, 1975.
R.E. SCOTT, J. W. GAULT AND D.F. MCALLISTER, ‘Fault Tolerant Software Reliability Modelling,’ Ieee Transactions on Software Engineering, Vol. 13, No. 5, p. 582–592, 1975.
H.A. TAHA, “Operations Research: An Introduction,’ Macmillan, New York 1997.
H.M. WAGNER, ‘Principles of Operations Research’ Prentice Hall, New Jersey, 1975.
G HARVEY Excel for Dummies, 2nd Edition, Idg Books Worldwide, 1994.
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Kumar, U.D. Reliability Analysis of Fault Tolerant Recovery Blocks. OPSEARCH 35, 281–294 (1998). https://doi.org/10.1007/BF03398550
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DOI: https://doi.org/10.1007/BF03398550