druck  wrote:
> On 03/10/2018 03:48, bob prohaska wrote:
>> My predicament was revealed by fsck: a fault was found, fsck asked
>> permission to fix the fault and told me to run fsck again. The fault
>> was still present. This went on till I gave up. If the block with the
>> error is bad, and there are no spare blocks to replace it, this makes
>> good if unhappy sense. I'm looking for some measuring tool that looks
>> past the flash controller to independently ascertain the state of the
>> storage media.
>
> You don't get that in cheap SD card flash designed to temporarily store
> photos and to be obsolete before it reaches its wear life.
>
> You need to use something that is designed to be primary computer
> storage, i.e. an SSD, as it's controller will not only be better at wear
> levelling, but also support all the health monitoring information.
>
> ---druck

Probably you're right, but that's an expensive (and power-hungry) approach
for a $35 computer that draws about three watts.

Thanks for writing!

bob prohaska

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