jack4747@gmail.com writes:

>> Any S.M.A.R.T. diagnostic tool will tell you spare blocks remaining. The
>> different parameters have fixed IDs, spare blocks remaining is ID=251
>> (0xFB) or sometimes 232 (0xE8), see https://en.wikipedia.org/wiki/S.M.A.R.T.
>
> SD cards and USB sticks usually don't have SMART protocol.

Yes. One might consider an SSD in a USB enclosure to have that
information. I recently built one for myself, just as a fast portable
media. Enclosure from ebay and drive (M.2 2240 size) from a local store.

Price was about the same as a fast USB stick (128 GB) but you get
support for TRIM at least. I haven't checked SMART, support really
depends on whether the USB controller passes through those commands
through to the driver or not.

Physical size is somewhat wider and longer than your typical USB
stick. The width causes trouble with tightly grouped USB ports. There
might be better enclosures than what I got.

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