[zfs-discuss] zfs-discuss Digest, Vol 43, Issue 3

Gionatan Danti g.danti at assyoma.it
Wed Nov 7 16:03:49 EST 2018

Il 07-11-2018 20:37 Bzzzz ha scritto:
> You shouldn't trust what the vendor/manufacturer told you about He
> sensors. A He sensor is a very delicate piece of technology to
> achieve, and the latest (smaller) are not very accurate (and anyway, 
> they
> _detect_ He, they DO NOT measure it's concentration which is a total
> other business (and price).)
> Not to mention that if ANY vendor/manufacturer tells you the HD
> includes a real differential atmosphere analyser (the only way to know
> the gazes percentages), he is a FLFH¹…
> Your sensor might tell about the internal atmosphere _pressure_,
> also meaning the more pressure, the faster it leaks.
>> On the other hand, these HDDs *must* be handled with care: any small
>> dent in the chassis will rapidly let all helium to escape. I saw two
>> HDDs DoA due to this very problem.
> I don't know about *any* HD that can bare bad treatments.
> Anyway, at the speed SSDz prices are tumbling down, HDz won't last very
> much longer than 4~5 years.
> ¹ - Fucking Liar From Hell.

Interesting... and condivisible. Surely if the manufacturers lie (and 
often they do!) we have a problem.
Anyway, give a look here: 


Danti Gionatan
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