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Designing Hybrid HDD using SLC/MLC combined Flash Memory  

Hong, Seong-Cheol (성균관대학교 정보통신공학부)
Shin, Dong-Kun (성균관대학교 정보통신공학부)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.16, no.7, 2010 , pp. 789-793 More about this Journal
Abstract
Recently, flash memory-based non-volatile cache (NVC) is emerging as an effective solution to enhance both I/O performance and energy consumption of storage systems. To get significant performance and energy gains by NVC, it would be better to use multi-level-cell (MLC) flash memories since it can provide a large capacity of NVC with low cost. However, the number of available program/erase cycles of MLC flash memory is smaller than that of single-level-cell (SLC) flash memory limiting the lifespan of NVC. To overcome such a limitation, SLC/MLC combined flash memory is a promising solution for NVC. In this paper, we propose an effective management scheme for heterogeneous SLC and MLC regions of the combined flash memory.
Keywords
SLC/MLC combined flash memory; Hybrid Hard Disk;
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  • Reference
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