An Endurance-Enhanced Flash Translation Layer via Reuse for NAND Flash Memory Storage Systems

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Provided by: European Design and Automation Association
Topic: Storage
Format: PDF
NAND flash memory is widely used in embedded systems due to its non-volatility, shock resistance and high cell density. In recent years, various Flash Translation Layer (FTL) schemes (especially hybrid-level FTL schemes) have been proposed. Although these FTL schemes provide good solutions in terms of endurance and wear-leveling, none of them have considered to reuse free pages in both data blocks and log blocks during a merge operation. By reusing these free pages, less free blocks are needed and the endurance of NAND flash memory is enhanced.
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