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The Tuesday 2007-02-20 at 14:26 -0800, Randall R Schulz wrote:
> >
> > I don't know about that, it is amazing how often disk drives fail
> > shortly after the warranty expires.
>
> Why is that amazing? Does it not make perfect sense to guarantee disks
> for as long as you say they will probably remain free of error? If the
> two were out of sync, then we could conclude the manufacturer either is
> using poor techniques to measure the MTBF or misrepresenting the true
> value. Now, if they extend the warrantee well beyond the true MTBF,
> then they'll be paying for a lot of replacements, and it would be
> foolish or inept of them to do so. If the drives fail long after the
> warranty period, then they could, without additional expense, extend
> the warranty further and appear to their potential customers to have
> great quality products (which their drives do in fact possess).
Mmm. I don't think that is exact.
For instance, cars here used to be guaranteed for a year, but they last
ten, or more, with maintenance. Products usually last longer than the
warrantied period; but on average, enough of them fail then so that it
wouldn't be economical to extend the guaranteed. It is a question of
deciding on the point.
- --
Cheers,
Carlos E. R.
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