please help translate smartctl output to human language

[Domagoj Smolčić]

On Fri, 19 Jul 2019 15:29:04 +0200 (CEST)
Wojciech Puchar <wojtek at puchar.net> wrote:

> >> freebsd-hackers at freebsd.org mailing list
> >> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> >> To unsubscribe, send any mail to
> >> "freebsd-hackers-unsubscribe at freebsd.org"  
> >
> >
> > Integers representing VALUE, WORST and THRESH columns are
> > "normalized values". Over time, VALUE of Total_LBAs_Written will be
> > declining. Once it reaches THRESH value it is considered 'Old_age',
> > meaning it's prone to all kinds of malfunctions expected from old
> > hardware. That doesn't mean you want be able to use it afterwards.
> >
> >
> >
> >  
> but are this proportional? I mean i had 100 when drive was new, now
> it's 99 so it's 1% used up (maybe near 2%)?
> 
> Seems quite a little after 2 years of usage

As I said, those are "normalized" values in order to have a MORE sensible interpretation.
Different vendors => different interpretation.

Just because it decremented for 1, doesn't mean it is trully 1% used up.
What would that mean anyway, wear level?
Also don't be shocked if decrement would be in >1 step.

Finally, your device might drop dead 5 min after you read this email.
Got an idea?
;)


Domagoj Smolčić