it always pays to look at the spec sheet on disks before you buy;
in general, disks with active power dissipations of 10W or less 
will not be a problem.  over 10W, and you want to start thinking
about how much air flows over the disks.

> I'm thinking of using Quantum Bigfoot to keep temperature down in an SMP
> server I expect to run 7/24. Disk performance is not critical for my apps

not a good idea.  BF's are hideously slow, do not have stellar reported
reliability, and don't actually save much power.  the BF-TS spec sheet
quotes 6.5W "operating" (.4 seek, .4 rw, .2 idle).  the comparable
dissipation from a Maxtor 4320 (MUCH faster, probably more reliable) 
is 6.7W.

> and those Quantums (5.25", I think 5400 rpm)run cool & are cheap. Good
> transfer rates, but not as fast on seeks as 3.5" drives.

4000 rpm, actually.  and very low transfer rates.  note that the 4320 will
actually sustain 12-16 MB/s across the platter; newer drives from Maxtor 
and WD are a little faster.  all these drives cost around $US 15-18/GB.

regards, mark hahn.
-- 
operator may differ from spokesperson.              [EMAIL PROTECTED]
                                              http://java.mcmaster.ca/~hahn

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