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A version-based strategy for reliability enhancement of flash file systems

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5 Author(s)
Pei-Han Hsu ; Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Yuan-Hao Chang ; Po-Chun Huang ; Tei-Wei Kuo
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In recent years, reliability has become one critical issue in the designs of flash file systems due to the growing unreliability of advanced flash-memory chips. In this paper, a version-based strategy with optimal space utilization is proposed to maintain the consistency among page versions of a file for potential recovery needs with the considerations of the write constraints of multi-level-cell flash memory. A series of experiments was conducted to show that the proposed strategy could improve the reliability of flash file systems with limited management and space overheads.

Published in:

Design Automation Conference (DAC), 2011 48th ACM/EDAC/IEEE

Date of Conference:

5-9 June 2011