ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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3
Issue
vol 62 / March, 2019
Article
UDC 681.3

FUNCTIONAL RELIABILITY OF COMPUTING SYSTEMS WITH REDISTRIBUTION OF INQUIRIES

A. V. Bogatyrev
ITMO University, 197101, Saint-Petersburg, Russian federation; Student


V. A. Bogatyrev
ITMO University, Saint Petersburg, 197101, Russian federation; Saint Petersburg State University of Aerospace Instrumentation, Saint Petersburg, 190000, Russian Federation; Professor, Professor


S. V. Bogatyryev
ITMO University; postgraduate student


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Abstract.   A method for estimation of functional reliability of computing systems is proposed. The method make use of probability of inquiry execution by the system in a time not exceeding the maximum permissible value. The estimation of functional reliability considers possibilities of adaptation to refusals and changes of inquiry stream as a result of redistribution of inquiries between computing knots through the network. Efficiency of inquiries redistribution through a network is demonstrated.
Keywords:   fault tolerance, distributed computing systems, redistribution of inquiries, cluster, optimization, real time.