[RndTbl] hard drive failure curve

John Lange john at johnlange.ca
Thu Sep 4 12:44:57 CDT 2014


I would submit that any device that relies on a hard drive (of which there
are many, not just computers), would have a failure curve that closely
matches hard drives ;)



On Thu, Sep 4, 2014 at 2:41 AM, Adam Thompson <athompso at athompso.net> wrote:

> On 14-09-04 02:23 AM, Trevor Cordes wrote:
>
>> The Cars example is imperfect, because, as you said "it's good for a
>> while",
>>
>
> Yup.  Closest mass good I could think of offhand.
>
>
>  Surely if you ASCII'd a modern car graph it wouldn't quite fit?
>>
>
> The key difference is that you can repair and maintain a car, whereas a
> HDD (or SSD, for that matter) is either alive and well, alive and dying, or
> dead - and there's nothing you can do about it.
>
>
>  Your human being analogy is probably much closer to what I'm looking
>> for, but that one definitely has an abrupt bathtub hockey-stick at the
>> right hand side :-)
>>
>
> Yessss... although not so abrupt, at various points in history.
>
>
>  Surely, though, in the world of consumer items something else must be
>> just like hard drives?
>>
>
> Not that I can think of.  You have to combine a) non-negligible failure
> rate, with b) extremely tight tolerances, with c) variable quality control
> on (b), to get a similar result.  Outside the computing field, I can't
> think of anything [other than cars] that has as much complexity, as
> "finicky" as 10,000rpm spinning platters - AND is common enough that
> everyone will understand it.
>
>
> --
> -Adam Thompson
>  athompso at athompso.net
>
>
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-- 
John Lange
www.johnlange.ca
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