>
> I don't believe the specs either, because they are for the "ideal" case.
> However, I think that either your benchmark is flawed, or you've got a
> crappy controller. I have a (I think) 5400 RPM 4.5GB IBM SCA SCSI drive in
> a machine at home, and I can easily read at 7MB/sec from it under Solaris.
> Linux is slower, but that's because of the drivers for the SCSI controller.
> I haven't done any benchmarks on my IDE drives because I already know that
> they're SLOW.
> Greg
>
Whatever you think of the interface (ide vs scsi) you have to accept
that a drives speed is dependent on its rotation speed.
A 7200RPM IDE drive is faster than a 5400RPM SCSI drive and a 10000RPM
SCSI drive is faster than a 7200RPM drive.
If you have two 7200RPM drives, one scsi and one ide, each on there own
channel, then they should be about the same speed.
Multiple drives per channel give SCSI an edge purely because thats what
the scsi bus was designed for. You pay a big dollars for this advantage
though.
Glenn McGrath
