[5298] in linux-scsi channel archive
Re: Dumb question: Which is "better" SCSI or IDE disks?
daemon@ATHENA.MIT.EDU (Leonard Zhang System Administrator)
Sat Dec 5 08:58:34 1998
Date: Sat, 5 Dec 1998 11:35:33 +1000 (AEST)
From: Leonard Zhang System Administrator ISD RVIB <leonardz@rvib2.rvib.org.au>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
cc: leighton@mail.imake.com, linux-kernel@vger.rutgers.edu,
linux-scsi@vger.rutgers.edu
In-Reply-To: <m0zm0iM-0007U3C@the-village.bc.nu>
1. Some hard disk manufactures are using same disk drive (physically) to
make SCSI and ATA. They only change the PCB board.
2. SCSI-1 and SCSI-2 have 8 bit data bus, while ATA have 16 bit data bus.
3. ATA got disk cache built in as well.
4. Some low end of SCSI host card is only 8 Bit card.
Compare by yourself.
Leonard
On Fri, 4 Dec 1998, Alan Cox wrote:
> > IDE is cheaper and faster than SCSI, but you can't have so much IDE hard
> > disks hooked up to your machine as SCSI.
>
> For real work patterns SCSI tends to be faster than IDE. Also for high
> end devices SCSI is wonderful. Most of my smaller boxes are IDE- its just
> not worth the price difference
>
>
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