Energy-aware management of NAND type flash file system

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Energy-aware management of NAND type flash file system

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© The Institution of Engineering and Technology
Published

An efficient means to reduce energy consumption for NAND flash memory is to decrease the erasing count in the file system. JFFS2 is open-source and a Linux flash file system. Based on JFFS2, allocation and erasing policies are proposed which can effectively reduce the erasing count to reach the energy-economic purpose. According to experimental results, the proposed methodology can reduce energy consumption to 49% JFFS2.

Inspec keywords: storage management; flash memories; open systems; Linux; NAND circuits

Other keywords: JFFS2 file system; allocation policy; NAND flash memory; energy-aware management; flash file system; Linux file system; erasing policy; open-source system; erasing count

Subjects: Semiconductor storage; File organisation; Memory circuits

References

    1. 1)
      • Matthews, J.N., Roselli, D., Costello, A.M., Wang, R.Y., Anderson, T.E.: `Improving the performance of log-structured file systems with adaptive methods', Proc. 16th ACM Symp. on Operating Systems Principles, 1997, p. 238–251.
    2. 2)
      • Woodhouse, D.: `JFFS, The Journaling Flash File System', Ottawa Linux Symp., 2001.
    3. 3)
      • H.J. Kim , S.G. Lee . An effective flash memory manager for reliable flash memory space management. IEICE Trans. Inf. Syst. , 6 , 951 - 964
    4. 4)
      • Samsung Electronics, NAND Flash memory & SmartMedia data book, 2002.
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