[rescue] Apple Announces Rackmount Server - WITH IDE HARDWARE RAID

David Passmore dpassmor at sneakers.org
Wed May 15 13:35:42 CDT 2002


On Wed, May 15, 2002 at 02:23:57PM -0400, Joshua D Boyd wrote:

> Of course, do they even meet their own specs?  My IDE drives run nowhere
> close to the 33 or 66 megs they advertise.  I'd be shocked if ATA100 drives
> run anywhere near 66mb/s either, but each hard drive has to crank 66mb/s
> sustained to meet the Apple spec.

It takes several drives to saturate the bandwidth of any kind of bus. The
one drive per channel thing isn't about bandwidth, it's about contention.
Similar to how ethernet switching was created to eliminate collisions, not
increase bandwidth.

David



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