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Efficient logging of metadata using NVRAM for NAND flash based file system

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2 Author(s)

The synchronous writing of metadata for flash file system generates excessive garbage. We propose the scheme for merging the writing of metadata so as to reduce the garbage of the NAND flash while ensuring file system consistency. The proposed scheme uses the non-volatile memory for synchronously logging modifications of the metadata. The last modified metadata can be recovered from a crash, after scanning logs in the non-volatile memory. The evaluation results show that the proposed scheme greatly reduced the overall application time and the number of written pages across various benchmarks, compared to the conventional flash file system.

Published in:

Consumer Electronics (ICCE), 2012 IEEE International Conference on

Date of Conference:

13-16 Jan. 2012