FAT for NAND Flash
dwmw2 at infradead.org
Thu May 16 10:24:17 EDT 2002
studying_mtd at yahoo.com said:
> 1. Is it possible to use FAT filesystem with NAND Flash.
Not directly. You need to use a translation layer on the NAND flash to make
it emulate a normal hard drive, on which you can put any normal file system.
> 2. What are the advantages and disadvantages of using FAT with NAND
You end up with a file system on top of another pseudo-filesystem which is
doing the hard drive emulation for you. Ideally, both of them need to do
their own journalling to ensure consistency at each level -- that's why
it's better just to have a file system that's designed to run on flash.
We aren't running DOS any more. We don't need to pretend to be a hard drive
just so that we can provide an INT 13h handler and have it 'just work'.
> 3. What is the difference between SmartMedia DOS-FAT and ordinary Fat
AFAIK nothing. SmartMedia has a translation layer just like FTL and NFTL,
and you put a normal FAT file system on top of that.
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