how to measure microsd wear

[tech-lists]

On 22/01/2017 02:53, Rodney W. Grimes wrote:
> In either case the manufactures of flash devices have made it very
> clear that these things DO have a write cycle life time, and that
> your going to see a failure eventually if you write enough data to
> them.

Hi,

Is there a way one can see how many (or an average) number of write
cycles the cluster or device has had? In order to get a handle on when
it's likely to fail. Or to see what's been remapped and how many more it
can remap? If not on freebsd then on any OS?

Maybe something that tests # remappable and warns when there's nothing left?

I mean it's all fair and well the manufacturers saying it will fail on
average after so many writes, but that uncontextualised information is
useless if one cannot establish how many writes have already happened.
-- 
J.