Filesystem corruption

[Volker Wysk]

Am Dienstag, den 25.06.2019, 13:33 -0600 schrieb compdoc:
> 
> On 6/25/19 1:07 PM, Volker Wysk wrote: 
> > OK, when I do "sudo smartctl --all /dev/sda", I get: 
> > 
> >      ... 
> >      SMART overall-health self-assessment test result: PASSED 
> >      ... 
> > 
> > Does this mean that my drive is okay? For /dev/sdb, it's the same. 
> > 
> > I guess, I don't have to run the SMART daemon, do I? 
> > 
> > Bye, 
> > Volker 
> > 
> > 
>  
> Unfortunately, no. Drive makers set thresholds for some events. The
> number can be different from model to model, but lets say they allow
> 10 bad sectors before SMART shows warnings. Well, any bad sectors
> means you probably have damaged files. 
> 
> You should read the relocated sector count, pending sector count, and
> reallocation count. They should all be 0 (zero) 

There is no "relocated sector count" in the output of "smartctl --all
/dev/sda". But there is Reallocated_Sector_Ct and
Current_Pending_Sector. The values are:

ID#  ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE
UPDATED  WHEN_FAILED RAW_VALUE
(...)
5    Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail
Always       -       0
(...)
197  Current_Pending_Sector  0x0032   200   200   000    Old_age
Always       -       0
(...)

/dev/sda is a hard disk. This is for /dev/sdb, which is an SSD:

ID#  ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE
UPDATED  WHEN_FAILED RAW_VALUE
(...)
5    Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  
Always       -       0
(...)

There 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..?


Thanks,
Volker