On 30 Mar 2016 09:00, "Jay Grizzard" wrote:
>
> > It get's "interesting" when you look at the MTBF times on hard disks.
Some
> > of the figures quoted in hours related to an MTBF of over 100 years.
From
> > what I read before, this was based on you replacing the drive at the
end of
> > its service
> It get's "interesting" when you look at the MTBF times on hard disks. Some
> of the figures quoted in hours related to an MTBF of over 100 years. From
> what I read before, this was based on you replacing the drive at the end of
> its service life (typically 3 years for consumer drives and 5 year
On 28 March 2016 at 00:32, Attila Kinali wrote:
>
> Yes, the MTBF is a very simplicistic measure and there are a couple
> of assumptions in its calculation which do not hold generally (or
> rather, it's rather seldom that they hold).
It get's "interesting" when you look at the MTBF times on ha
It's been a while since I designed aerospace hardware, but seems I remember we
had both a calculated AND a demonstrated MTBF.
Back then we called it Mil-Std 781. (I am sure it morphed into more modern
tests).
We had both a pre-production qual-test and a production acceptance-test, both
requir
We make some thick film, plastic molded , plug in attenuators for the cable
TV industry. We have been asked on several occasions to provide MTBF data.
Being a small company with limited resources, we have never been able to
provide that data. The parts we make will easily outlast the equipment they
Am Mon, 28 Mar 2016 01:32:03 +0200
schrieb Attila Kinali :
> Yes, the MTBF is a very simplicistic measure and there are a couple
> of assumptions in its calculation which do not hold generally (or
> rather, it's rather seldom that they hold). Yet it gives a number to
> something that is otherwise
Salut Alan,
On Sun, 27 Mar 2016 15:52:00 +0100
"Alan Melia" wrote:
> I am out of the business now, well retired, so my opinion carries
> little weight,
> :-)) but for whatever it does, my thought is that MTBF is a pretty useless
> parameter in general. This is a relatively low volume unit man
