running poudriere with 8 builders

Matthew D. Fuller fullermd at over-yonder.net
Sat Mar 4 13:11:25 UTC 2017


On Sat, Mar 04, 2017 at 12:57:40PM +0100 I heard the voice of
Kurt Jaeger, and lo! it spake thus:
>
> /pou is on an Samsung SSD 840 EVO 250GB:
> 
> smartctl says:
> 
>   9 Power_On_Hours          0x0032   091   091   Always       -       41885
>  12 Power_Cycle_Count       0x0032   099   099   Always       -       8
> 177 Wear_Leveling_Count     0x0013   083   083   Always       -       199
> 
> The Wear_Leveling_Count shows that it's probably beyond the spec
> already 8-}

Actually, I'm pretty sure it means the opposite   8-}

It's my understanding that the "Raw" value on them is pretty much
roughly the actual count of levelled drive writes, and the cooked
"Value" (/worst, though that doesn't make a difference on that
attribute) winds up basically meaning "percent of rated life left"[0].
So you've got ~200 drive writes, and have used about 17% of its life.


On a 250GB 840 Evo I have, in somewhat easier use than being
poundriered senseless:

ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
177 Wear_Leveling_Count     PO--C-   095   095   000    -    57

It's in a mirror with a similarly sized MX100, which (with its
different attributes; can't be consistent, y'know) says

202 Percent_Lifetime_Used   P---CK   095   095   000    -    5

which agrees; I've only got 19/20ths of their lifespan to go before I
gotta cough up umpty-dozens of dollars to replace them.



[0] For most SMART attributes, the cooked 'value' actually starts at
    100 and counts down, with the Threshold level being where it
    starts claiming to be deeply unhappy.


-- 
Matthew Fuller     (MF4839)   |  fullermd at over-yonder.net
Systems/Network Administrator |  http://www.over-yonder.net/~fullermd/
           On the Internet, nobody can hear you scream.


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