Calculating Cumulative Operational Time Distributions of Repairable Computer Systems
IEEE Transactions on Computers - The MIT Press scientific computation series
A Measure of Guaranteed Availability and its Numerical Evaluation
IEEE Transactions on Computers
Interval availability analysis using operational periods
Performance Evaluation - Special issue on performability modelling of computer and communication systems
Availability Analysis of Repairable Computer Systems and Stationarity Detection
IEEE Transactions on Computers
Hardware-Software Co-Reliability in Field Reconfigurable Multi-Processor-Memory Systems
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
Computers and Operations Research
Solving large interval availability models using a model transformation approach
Computers and Operations Research
Uniformization with representatives: comprehensive transient analysis of infinite-state QBDs
SMCtools '06 Proceeding from the 2006 workshop on Tools for solving structured Markov chains
INFORMS Journal on Computing
INFORMS Journal on Computing
SLA success probability assessment in networks with correlated failures
Computer Communications
A New General-Purpose Method for the Computation of the Interval Availability Distribution
INFORMS Journal on Computing
Mathematics and Computers in Simulation
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Interval availability is a dependability measure defined by the fraction of time during which a system is operational over a finite observation period.The computation of its distribution allows the user to ensure thatthe probability that its system will achieve a given availability level is high enough. The system is assumed to be modeled as a Markov process with countable state space. We propose a new algorithm to compute the interval availability distribution. One of its main advantages is that, in some cases, it applies even to infinite state spaces. This is useful, for instance, in case of models taking into accountcontention with unbounded buffers. This important feature is illustrated on models of multiprocessor systems subject to breakdowns and repair. When the model is finite, we show through a numerical example that the new technique can perform very well.Index Terms驴 Denumerable Markov processes, dependability prediction, interval availability distribution, repairable computer systems, transient analysis, queues with breakdowns, uniformization.