"Powell" wrote in message
...
"Robert Morein" wrote

Morien still hasn't substantiated this claim by any means
other than personal attack and introduction of a discussion
of hard drives and CPU fans, not facts about CD burners.

There is a naive misconception as to what MTBF means.

True, but Morein so far you haven't made the issue
relevant here.

It's a good thing businesses are run-out of the front
office and not out of engineering. Your quoted
statistical models have little practical value in the
real world. Hard drives are spec build based on
managerial accounting (cost/profit). As one Western
Digital representative put it, our drives have a ½ of
1% failure rate. There is no economic advantage in
producing higher quality in a highly competitive
marketplace. So you can lump-in all your stats and
it still comes out the same number (½ of 1% failure
rate).

In what time period? I assume he is saying
they experience this DOA rate as he is
talking about quality, not reliability.
This stupid representative doesn't know
how much they will have to lower their prices
to maintain market share if they develop a
reputation for poor quality.
Engineers have to save stupid marketeers and
representatives from saying meaningless stuff
all the time.

Tell the users of transaction processors and
telecom systems that MTBF has
little use. Their system architecures,uptime and lack
of user noticeable service reductions depends
on their ability to understand these numbers
and MTTR.

ScottW