On Tue, Aug 31, 2010 at 5:47 AM, Stefan Monnier <[email protected]> wrote:
> Could be. That depends on the particular card you use, tho, since the > algorithm used by the translation layer varies. The only relevant thing that varies from SD card to SD card is the size of the erase block. Any re-mapping SDs (and most SSDs) do are at the erase block level. Wear leveling algorithms vary -- but as far as I know, the majority are still based around the erase block. (e.g.: When a group of sectors written are smaller than the size of an erase block, the remaining sectors are read from the erase block, combined with the new data, and then written to a free block with the lowest amount of writes.) I'm interested in seeing an SD card that remaps at a finer grain than its erase block.
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