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In what way would you do it differently than the FTL. Are you familiar with all the restrictions and limitations of using NAND and how it impacts the FTL algori

• nqzero 12y ago
  it's less that i'd do things not currently done in the FTL, and more that it would be deterministic. my algorithm is a cyclic cache that's write heavy, at least initially targeted at low end hardware. if i could bypass the FTL, i could ensure that my algorithm wasn't amplifying. but with FTL, which varies from drive to drive, my usage pattern could result in a great deal of amplification i'm sure that for any given controller's FTL (and this article claims that there really are only a couple on the market), i could tweak my algorithm to work reasonably well. but that's a sign of a leaky abstraction i'd also like access to the small SLC portion of the drive, though i'm working around that for now with journaling i'm not an expert in flash memory. my model is basically a block device with larger block erasure, and that the number of erasures each block can handle is limited