Development of models for research of reliability of information system restored after refusals with architecture «client-server»

Abstract

Two mathematical models for the description of behavior of an information system with architecture «client server» without account and taking into account final reliability of the control system and restoration of the refused component of the considered system are constructed. The behavior of an information system in the presence of refusals and maintenance of components is approximated by Markov process and described by the system of the differential equations with variable coefficients. The solution of the received differential equations by numerical methods on computers allows to conduct a research of various characteristics of reliability of information «client server» systems in the wide range of change of intensity of refusals and restoration of components of the system.