"Powell" wrote in message
...

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.

If they haven't factored out HD down time then they're
not competitive. What excuse could the IT department
come up with to justify HD down time?

None, this is why all the really reliable systems
use large RAID arrays or equivalent.

ScottW