Filesystem corruption

[compdoc]

On 6/26/19 12:52 AM, Volker Wysk wrote:

> here is no Current_Pending_Sector, and also no "relocated sector
> count", for /dev/sdb.
>
> Is this what you had in mind? And is the "RAW_VALUE" what should be
> zero..?


Yes, if those values are zero, it sounds like your drives are fine. I 
would look elsewhere. You can run the memtest86 that Ubuntu usually has 
as a boot option, or download and boot it from the web. Let it run 
several passes. Power supplies in desktop computers can fail in weird 
ways, too.

You mentioned using the ssd as a cache. how is that setup? Corruption 
isn't a common thing. Do you think you might have lost power while the 
machine was writing to a drive?