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Low-power Buffer Cache Management for Mixed HDD and SSD Storage Systems  

Kang, Hyo-Jung (이화여자대학교 컴퓨터공학과)
Park, Jun-Seok (서울대학교 컴퓨터공학부)
Koh, Kern (서울대학교 컴퓨터공학부)
Bahn, Hyo-Kyung (이화여자대학교 컴퓨터공학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.16, no.4, 2010 , pp. 462-466 More about this Journal
Abstract
A new buffer cache management scheme that aims at reducing power consumption in mixed HDD and NAND flash memory storage systems is presented. The proposed scheme reduces power consumption by considering different energy-consumption rate of storage devices, I/O operation type (read or write), and reference potential of cached blocks in terms of both recency and frequency. Simulation shows that the proposed scheme reduces power consumption by 18.0% on average and up to 58.9%.
Keywords
Low-power; Buffer Cache; Replacement Algorithm; Flash Memory; Hard Disk;
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