A Statistical Strategy to Estimate the Optimal Software Rejuvenation Schedules
Ji Wang · 2006
Software rejuvenation,a preventive maintenance technique for software fault tolerance,has been extensively studied in the recent literature.In this paper,we develop a statistical algorithm to estimate the optimal software rejuve- nation schedules,provided that the statistical complete sample data of failure times is given,and the optimal software rejuvenation schedules which maximize the system availabilities are derived analytically.Numerical examples illustrate the resulting estimators for the optimal software rejuvenation schedules have quite nice convergence properties and are useful in applying to a real software system in operation without specifying the underlying failure time distributions.