Caching and Writeback Policies in Parallel File Systems


David Kotz and Carla Schlatter Ellis. Caching and Writeback Policies in Parallel File Systems. Journal of Parallel and Distributed Computing, volume 17, number 1--2, pages 140–145. Academic Press, January 1993. doi:10.1006/jpdc.1993.1012. ©Copyright Academic Press. Revision of kotz:writeback.


Improvements in the processing speed of multiprocessors are outpacing improvements in the speed of disk hardware. Parallel disk I/O subsystems have been proposed as one way to close the gap between processor and disk speeds. Such parallel disk systems require parallel file system software to avoid performance-limiting bottlenecks. We discuss cache management techniques that can be used in a parallel file system implementation for multiprocessors with scientific workloads. We examine several writeback policies, and give results of experiments that test their performance.

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Keywords: [pario]

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