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Efficient FTL Mapping Management for Multiple Sector Size-based Storage Systems with NAND Flash Memory  

Lim, Seung-Ho (한국외국어대학교 디지털정보공학과)
Choi, Min (원광대학교 컴퓨터공학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.16, no.12, 2010 , pp. 1199-1203 More about this Journal
Abstract
Data transfer between host system and storage device is based on the data unit called sector, which can be varied depending on computer systems. If NAND flash memory is used as a storage device, the variant sector size can affect storage system performance since its operation is much related to sector size and page size. In this paper, we propose an efficient FTL mapping management scheme to support multiple sector size within one NAND flash memory based storage device, and analyze the performance effect and management overhead. According to the proposed scheme, the management overhead of proposed FTL management is lower than conventional scheme when various sector sizes are configured in computer systems, while performance is less degraded in comparison with single sector size support system.
Keywords
NAND Flash Memory; Multiple Sector Size; FTL;
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