Quick Algorithms to Calculate Mean Time to Failure and Steady State Availability of Systems

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Authors

AMIRI Moslem PŘENOSIL Václav

Year of publication 2012
Type Article in Proceedings
Conference Deterioration, Dependability, Diagnostics 2012
MU Faculty or unit

Faculty of Informatics

Citation
Field Computer hardware and software
Keywords Mean time to failure; steady state availability; Markov graphs; algorithm; measurement
Attached files
Description Calculation of reliability and availability is a necessary part of every fault tolerant system design. Conventional methods, which use calculus of probability, almost fail when there is dependant failure, repair, or standby operation in the system. Use of Markov models also almost breaks down when system is composed of many elements or system is repairable. However, the alternatives for reliability and availability, i.e., mean time to failure and steady state availability, respectively, are easily measurable using Markov graphs. In this paper, we introduce an algorithm for the calculation of mean time to failure, and also develop a method to measure steady state availability with its corresponding algorithm.
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