Re: Sandisk SSD smart checksum error

On 30.1.2017 11:44, Aurelien Dellieux wrote:
> i try to understand what is happening on a SanDisk SSD.
> please find the log file attached.
>
> i manage three identical laptops.
> on two of them, i don't have the smart checksum error.

Well, only vendor can provide authoritative answer to you. But I guess 
it's rather marginal bug. It seems the ATA Error Log data structure on 
disk is not initialized correctly during manufacturing process.

There's just one record in the log, while index claim there are five (or 
so) valid records. Thus even uninitialized portions of log are 
interpreted as valid record - and it fire errors. Issue may (but may 
not) disappear when another error record become written into the log. 
Issue will disappear (I'm almost sure) once log become full (so just 
send enough number of unknown commands to disk if you wish to 'correct' 
the issue).


> i don't know what to do with the one producing the error.
> is the disk really faulty ?

In general, this bug disclose that vendor doesn't take the quality 
seriously enough. But this particular bug is rather marginal issue and 
can be safely ignored.

But remember - only vendor can provide authoritative answer to you. I'm 
just guessing.

Dan


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