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http://dx.doi.org/10.13067/JKIECS.2011.6.5.665

Effecient Prefetching Scheme for Hybrid Hard Disk  

Kim, Jeong-Won (신라대학교 컴퓨터공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.6, no.5, 2011 , pp. 665-671 More about this Journal
Abstract
The Competitiveness of Hybrid hard disk drive(H-HDD) for solid state disk(SSD) comes from both lower power consumption and higher reading speed. This paper suggests a prefetching scheme that can improve the performance of Non-Volatile cache(NVCache) memory installed on the H-HDD through prefetching disk blocks as well as files to the NVCache. The proposed scheme makes the highly used data such as booting files copy to the NVCache as an unit of file and the frequently accessed blocks copy to the NVCache. This prefetching is done on the idle time of disk queue and the priorities of prefetched target blocks are based on both time and spatial locality of blocks. Experiments results show that the suggested method can improve response time of H-HDD and also lower the power consumption.
Keywords
hybrid hard disk; prefetching; cache; operating system;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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