Abstract
Recent SSDs use parallel architectures with multi-channel and multi-way, and manages multiple pages in a group, called superpage, to reduce the size of address mapping information. Such a coarse grained mapping provides a poor performance for small sized random write requests. To solve the problem, this paper proposes a novel host-level device driver, called HARD, which merges several small sized random write requests into a long sequential write requests. Experimental results showed the proposed HARD improved the random write performance by up to eight times.
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Acknowledgments
This research was supported by Future-based Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology(2010-0020724).
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Jang, YJ., Shin, D. (2012). HARD: Host-Level Address Remapping Driver for Solid-State Disk. In: Kim, K., Ahn, S. (eds) Proceedings of the International Conference on IT Convergence and Security 2011. Lecture Notes in Electrical Engineering, vol 120. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2911-7_14
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DOI: https://doi.org/10.1007/978-94-007-2911-7_14
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