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Flash Memory System
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 FlexFS: Flexible Flash File System
1. Research goals
  • Provides the maximum capacity of MLC flash memory
  • Provides the performance and endurance close to SLC flash memory
  • 2. Our approaches
  • Exploit a flexible cell programming of MLC flash memory
  • Write data into SLC region and migrates them to MLC region using idle time
  • Adjust the amount of data to be written to SLC region considering performance and lifetime
  • 3. Published papers
  • Sungjin Lee, Keonsoo Ha, Kangwon Zhang, Jihong Kim, and Junghwan Kim, "FlexFS: A Flexible Flash File System for MLC NAND Flash Memory," International Conference on USENIX Annual Technical Conference (USENIX '09), San Diego, USA, June 14-19, 2009