Are these the disks for me?

Geoff Kuenning geoff at desint.UUCP
Sat May 10 11:51:00 AEST 1986


In article <411 at brl-smoke.ARPA> dms at mit-hermes.arpa writes:

>The 3.0 MB/S CDC drive has the same MTBF as the eagle and eagle II. In
>addition, its seek time it 16 ms average, compared with 18 ms for the
>eagle. All in all, it seems like a better drive than the eagle II.

I presume the MTBF you are talking about is the manufacturer's spec in each
case.  If so, remember that in one case (CDC) you are talking about a
number that is a theoretical calculation.  On the other hand, the Eagle's
reputation for reliability derives from experience in the field, not
the manufacturer's MTBF spec, which may be much more conservative.  For
reference, a year is 8766 hours.  If you plan on running 24-hours a day,
a 10,000-hour MTBF is pretty poor.
-- 

	Geoff Kuenning
	{hplabs,ihnp4}!trwrb!desint!geoff



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