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

[Patrick Giagnocavo 717-201-3366]

On Wed, May 15, 2002 at 12:45:09PM -0700, Rick Hamell 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.
> 
> 	You all seem to be forgetting that ATA100 drives are 100MB only in
> BURST, not sustained. Sustained speeds are usually 25-50% of
> that (Depending on what else is on the bus, how hot the drives are, and
> what phase the moon is in.)

I get 15-20MB sustained from my Maxtor 7200.

When comparing against SCSI U160, remember that protocol overhead
means that you don't get 160 either.

Cordially

Patrick Giagnocavo
patrick at zill.net