The UltraSAN modeling environment
Performance Evaluation - Special issue: performance modeling tools
Performability Analysis: A New Algorithm
IEEE Transactions on Computers
Performance and reliability analysis of computer systems: an example-based approach using the SHARPE software package
Hierarchical-compositional performablity modeling for fault-tolerant multiprocessor systems
Hierarchical-compositional performablity modeling for fault-tolerant multiprocessor systems
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Systems with global spares, in which a spare can replace any of multiple identical primary modules, are widely used. We present efficient algorithms for approximating the probability distribution of performance level (number of working modules) in systems with global spares and arbitrary module failure distribution. For nondegradable systems with global spares and arbitrary module failure distribution, our algorithms provide the first efficient solution for reliability. For degradable systems with global spares, our algorithms can be used to produce upper and lower bounds on various dependability measures.