Determination of Data Backup System Fault Tolerance

The paper considers the method of researching the fault tolerance of the backup system based on semi-Markov processes, and presents a quick overview of calculation methods for dynamic and static models of reliability analysis. The research shows that implementations based on semi-Markov processes have practically no limitations on building failure, recovery and backup models, and also provide the most accurate results. We described the existing storage technologies. By mixed, i.e., analytical-simulation, modeling, we implemented the data backup model. The simulation part, which determines the fault tolerance of switches and servers, is presented in terms of queuing theory, and the analytical part suggests defining fault tolerance for a data storage system based on semi-Markov processes

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