Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/39840
Title: RNFTL: a reuse-aware NAND flash translation layer for flash memory
Authors: Wang, YI
Liu, DUO
Wang, M
Qin, Z
Shao, Z 
Guan, Y
Keywords: Endurance
Flash memory
Reuse
Space utilization
Wear-leveling
Issue Date: 2010
Source: LCTES '10 Proceedings of the ACM SIGPLAN/SIGBED 2010 Conference on Languages, compilers, and tools for embedded systems, Stockholm, Sweden, April 12-16, 2010, p. 163-172 How to cite?
Abstract: In this paper, we propose a hybrid-level flash translation layer (FTL) called RNFTL (Reuse-Aware NFTL) to improve the endurance and space utilization of NAND flash memory. Our basic idea is to prevent a primary block with many free pages from being erased in a merge operation. The preserved primary blocks are further reused as replacement blocks. In such a way, the space utilization and the number of erase counts for each block in NAND flash can be enhanced. To the best of our knowledge, this is the first work to employ a reuse-aware strategy in FTL for improving the space utilization and endurance of NAND flash. We conduct experiments on a set of traces that collected from real workload in daily life. The experimental results show that our technique has significant improvement on space utilization, block lifetime and wear-leveling compared with the previous work.
URI: http://hdl.handle.net/10397/39840
ISBN: 978-1-60558-953-4
DOI: 10.1145/1755888.1755912
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