Modeling and analysis of repair and maintenance processes in Fault Tolerant Systems

This paper proposes a new model to evaluate the reliability, as a metric of the quality of fault tolerant systems that undergo repair and maintenance processes. The model is developed based on the markovian nature of repair and maintenance processes. The repair and maintenance processes are characterized with respect to mean time between failure, mean time between repair and mean time between maintenance. Simulation results are shown to demonstrate various co-effects of repair and maintenance processes on the reliability under the assumption of the proposed model.