Abstract
Constructing flash memory based storage, FTL (Flash Translation Layer) manages mapping between logical address and physical address. Since FTL writes every data to new region by its mapping method, the previous data is not overwritten by new write operation. When a journaling file system is set up upon FTL, it duplicates data between the journal region and its home location for the file system consistency. However, the duplication degrades the performance. In this paper, we present an efficient journal remap-based FTL. The proposed FTL, called JFTL, eliminates the redundant data duplication by remapping the journal region data path to home location of file system. Thus, our JFTL can prevent from degrading write performance of file system while preserving file system consistency.
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References
Douglis, F., Caceres, R., Kaashoek, F., Li, K., Marsh, B., Tauber, J.A.: Storage alternatives for mobile computers. In: Proc. of the 1st Symposium on Operating Systems Design and Implementation (OSDI), pp. 25–37 (1994)
Best, S.: JFS Overview (2004), http://www.ibm.com/developers-orks/library/l-jfs.html
Sanmsung Electronics Co., NAND Flash Memory & SmartMedia Data Book (2002), http://www.samsung.com/
Ban, A.: Flash file system. U.S. Patent 5404485 (Arpil 4, 1995)
Intel Corporation: Understanding the flash translation layer (FTL) specification, http://developer.intel.com/
Memory Technology Device (MTD) subsystem for Linux, http://www.linux-mtd.infradead.org
Gal, E., Toledo, S.: Mapping Structures for Flash Memories: Techniques and Open Problems. In: Proceedings of the IEEE International Conference on Software-Science, Technology and Engineering (2005)
Woodhouse, D.: JFFS: The Journalling Flash File System. Ottawa Linux Symposium (2001)
Aleph One Ltd: Yaffs: A NAND-Flash File system, http://www.aleph1.co.uk/yaffs/
Lim, S.-H., Park, K.H.: An Efficient NAND Flash File System for Flash Memory Storage. IEEE Transactions on Computers 55(7), 906–912 (2006)
Kawaguchi, A., Nishioka, S., Motoda, H.: A Flash-Memory Based File System. Usenix Technical Conference (1995)
Rosenblum, M., Ousterhout, J.K.: The Design and Implementation of a Log-Structured File System. ACM Transactions on Computer Systems 10(1) (1992)
Ts’o, T., Tweedie, S.: Future Directions for the Ext2/3 File system. In: Proceedings of the USENIX Annual Technical Conference(FREENIX Track) (June 2002)
Timothy, E., et al.: Journal-guided Resynchronization for Software RAID. In: Proceedings of the 4th USENIX Conference on File And Storage Technologies(FAST) (December 2005)
Tim Bray: Bonnie Benchmark, http://textuality.com/bonnie/
William, D.: Norcott: Ioznoe File system Benchmark, http://www.iozone.org/
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Lim, SH., Choi, H.J., Park, K.H. (2007). Journal Remap-Based FTL for Journaling File System with Flash Memory. In: Perrott, R., Chapman, B.M., Subhlok, J., de Mello, R.F., Yang, L.T. (eds) High Performance Computing and Communications. HPCC 2007. Lecture Notes in Computer Science, vol 4782. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75444-2_23
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DOI: https://doi.org/10.1007/978-3-540-75444-2_23
Publisher Name: Springer, Berlin, Heidelberg
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