On 21/10/2019 17:48, bob prohaska wrote:
> The Natural Philosopher  wrote:
>> On 21/10/2019 06:56, A. Dumas wrote:
>>> On 21-10-2019 01:40, bob prohaska wrote:
>>>> Is there a program for testing speed of storage devices anyhere in
>>>> the Raspbian apt-get universe? I'd like to test read/write speeds
>>>> of a microSD card that seems to be getting stuck from time to time.
>>>>
>>>> Obviously, I'd have to use a USB-microSD adapter, but for the magnitude
>>>> of deadlock I'm looking for that should be plenty fast.
>>>
>>> If it's mounted: sudo hdparm -t --direct /dev/sda2
>>> But "getting stuck" sounds like trouble. Veterinary friends used to say:
>>> "a sick bird is a dead bird" and much the same is true for sd cards I'm
>>> afraid.
>>
>> I am afraid I have to add my vote to that.
>>
>>
> Quite possibly the microSD card is on its way out. Before spending the $
> to replace it I'd like to be more sure than I am now. It's a Samsung Evo
> Plus 128 GB, only a few months old. However, I did accidentally run it to
> about 97% capacity, which I gather tends to defeat wear-leveling features.
>
> Hdparm's man page suggests it's a bigger hammer than needed but might work.
> Something similar to CrystalDiskMark would do the job, but far as can be
> told it's strictly a Windows program and I have no Windoww hosts available.
>
> Thanks to both of you for reading and replying!
>
> bob prohaska
>
If the card has S.M.A.R.T. capability, interrogate that.

When an SSD went unexpectedly weird that was what got be a warranty
replacement.

--
"When one man dies it's a tragedy. When thousands die it's statistics."

Josef Stalin

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