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Semantically-Smart Disk Systems: Past, Present, and Future

Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau, Lakshmi N. Bairavasundaram, Timothy E. Denehy, Florentina I. Popovici, Vijayan Prabhakaran, and Muthian Sivathanu


In this paper we describe research that has been on-going within our group for the past four years on semantically-smart disk systems. A semantically-smart system goes beyond typical block-based storage systems by extracting higher-level information from the stream of traffic to disk; doing so enables new and interesting pieces of functionality to be implemented within low-level storage systems. We first describe the development of our efforts over the past four years, highlighting the key technologies needed to build semantically-smart systems as well as the main weaknesses of our approach. We then discuss future directions in the design and implementation of smarter storage systems.


Publication typeArticle
Published inSigmetrics Performance Evaluation Review (PER)
PublisherAssociation for Computing Machinery, Inc.
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