FUNCTIONAL RELIABILITY OF COMPUTING SYSTEMS WITH REDISTRIBUTION OF INQUIRIES
Yadro Cloud Storage Development Center, Saint Petersburg, 195027, Russian Federation; Consulting Engineer
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. Bogatyrev
ITMO University, Saint Petersburg, 197101, Russian Federation; Yadro Cloud Storage Development Center, Saint Petersburg, 195027, Russian Federation; PhD Student; Consulting Engineer
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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.
