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We discuss the strategic directions and challenges in the management and use of storage systems--those components of computer systems responsible for the storage and retrieval of data. The performance gap between main and secondary memories shows no imminent sign of vanishing, and thus continuing research into storage I/O will be essential to reap the full benefit from the advances occurring in many other areas of computer science. In this report we identify a few strategic research goals and possible thrusts to meet those goals.