On Thu, Oct 12, 2000 at 11:14:49AM +0200, Thierry Vignaud wrote:
> Alexander Skwar <[EMAIL PROTECTED]> writes:
>
> > On Thu, Oct 12, 2000 at 07:43:30AM +0800, Leon Brooks wrote:
> > > BTW, why would you bother using IDE if you wanted performance?
> >
> > A simple cost/benefit relationship. IDE is *much* cheaper than SCSI and the
> > fastest hard drives (as far as MB/sec is concerned) are IDE drives.
>
> False. Faster EIDE drives gives you ~40Mb/sec while edge SCSI ones
> deliver up to 65Mo/sec.
Okay, you're about right. But the performance difference is really slim.
According to a harddrive comparison done by the german c't Magazin, the
leading German computer magazine, in c't #16/2000 in August, the fastest
EIDE harddisk is the IBM DTLA-307030 Deskstar 75GXP with 30 gigs. It has a
sustained throughput while reading between 17,5 MB/s as its lowest, and 35,7
MB/s at its highest. The weighted average is at 20,7 MB/s.
The fastest SCSI drive is the Quantum Atlas 10K II with 36,7GB. Reading is
between 22,8 MB/s and 41,6 MB/s, while the weightened average is at 26,5
MB/s.
BUT for the SCSI disk I need an UltraSCSI 160 controller, while the EIDE
disk is a UltraATA100 drive.
Speaking of prices: UltraATA 100 is readily available on board with many
new motherboards, else you would need something like a Promise controller or
simply power it down to UltraDMA 66, which doesn't give you any performance
differences with 1 drive. So, the EIDE disk is 399,- DM + 109,- DM for the
Promise controller = 508,- DM (~250 US$). The SCSI disk is a whopping
1799,- DM (~900 US$).
What's more cost effective?
Alexander Skwar
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