(gee, we sure have wandered far from SMP Linux here...)
On Wed, 2 Jun 1999, Mark Hahn wrote:
> 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
You're getting into apples and oranges territory here.
The Bigfoot is a 5.25" disk. The outside tracks of a 5.25" platter are
moving at more than 1.5x the linear velocity of a 3.5" platter at the same
spindle RPM.
Not to get mired in numbers... the point is there's more to a disk than the
spindle RPM.
For real world online backups (large contiguous writes, and little in the
way of seeks), I find the Bigfoot works pretty well and is cheap.
-Andy
Global Auctions
http://www.globalauctions.com
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