Re: F2FS On USB Sticks?

Lawrence D'Oliveiro <ldo@nz.invalid> writes:

Richard Kettlewell wrote:

Given FAT tends to concentrate writes in the early part of the device, a
USB stick without any wear levelling at all would be likely to have
extremely poor endurance and write performance. (Of course one can find
sticks that fit that description, but generally one tries to avoid
them...)

>
On the other hand, if you put one of those purpose-built Linux
filesystems on one of these, it might work (and last) quite well.

If you’re thinking of things like F2FS then I doubt it: it is explicitly
designed for block devices with a working FTL.

There are filesystems that are designed for raw flash (e.g. UBIFS) but
they depend on the MTD interface, i.e. they need to be able to issue
erases themselves. They won’t work on an ordinary USB stick, no matter
how cheap and nasty it is.

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