Re: SCSI


Subject: Re: SCSI
From: Anthony Valentine (amv@akvalentine.com)
Date: Fri Jun 28 2002 - 16:24:26 AKDT


On Thu, 2002-06-27 at 22:38, Arthur Corliss wrote:
> block transfers where your cache is useless). As a side note, does anyone
> know what the fastest EIDE on the market is? Seems that market doesn't make
> that big a deal of it like they do for SCSI.

I've never seen an IDE drive faster than 7200rpm

> If all you have in the machine is one drive, EIDE will work just fine in most
> cases (since there's no other devices to contend with on the bus). But once
> you start adding more devices, you'll get greater sustained throughput on SCSI.

I've noticed that SCSI also handles multiple simultaneous disk accesses
better.

The only reason, in my mind, to go with IDE is the availability of cheap
IDE RAID. If you stripe two or three IDE drives, you get the benefits
of SCSI's speed and higher rpm's. Of course this comes at cost of
reduced reliability. I wouldn't do it in a server, but for a home PC
the lower price may be worth it. YMMV.

Anthony

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