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

Pei Han Hsu, Yuan Hao Chang, Po Chun Huang, Tei Wei Kuo, David Hung Chang Du

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


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.

Original languageEnglish (US)
Title of host publication2011 48th ACM/EDAC/IEEE Design Automation Conference, DAC 2011
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Print)9781450306362
StatePublished - 2011

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X


  • Flash memory
  • MLC
  • file system
  • forward copying
  • recovery
  • reliability
  • version


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