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Performance evaluation of a partial dynamic declustering disk array system

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4 Author(s)
V. Catania ; Istituto di Inf. e Telecommun., Catania Univ., Italy ; A. Puliafito ; S. Riccobene ; L. Vita

With a view to improving the performance and the fault tolerance of mass storage units, this paper concentrates on the architectural issues of parallelizing I/O access and a disk array system by means of definition of a new, particularly flexible architecture, called Partial Dynamic Declustering, which is fault-tolerant and offers higher levels of performance and reliability than the solutions normally used. A fast distributed algorithm based on a dynamic structure and usable for the implementation of an efficient I/O subsystem manager is proposed. Particular attention is also paid to the definition of analytical models based on Stochastic Reward Petri nets in order to analyze the performance and reliability of the system proposed

Published in:

High Performance Distributed Computing, 1994., Proceedings of the Third IEEE International Symposium on

Date of Conference:

2-5 Aug 1994