[RndTbl] hard drive failure curve

Sean Walberg sean at ertw.com
Thu Sep 4 13:14:18 CDT 2014


Assuming the hard drive is the least reliable component in the system :P

Sean


On Thu, Sep 4, 2014 at 12:44 PM, John Lange <john at johnlange.ca> wrote:

> 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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>


-- 
Sean Walberg <sean at ertw.com>    http://ertw.com/
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