[1938] in linux-scsi channel archive
Re: Why SCSI disks rather than IDE disks? Re: SCSI disks
daemon@ATHENA.MIT.EDU (Edward Welbon)
Mon Jun 2 13:37:52 1997
Date: Mon, 2 Jun 1997 12:32:59 -0500 (CDT)
From: Edward Welbon <welbon@bga.com>
To: "Leonard N. Zubkoff" <lnz@dandelion.com>
cc: linux-scsi@vger.rutgers.edu
In-Reply-To: <199706021654.JAA17464@dandelion.com>
On Mon, 2 Jun 1997, Leonard N. Zubkoff wrote:
> I said:
> > The disk mechanism itself is not at issue as those are in principle
> > identical.
> This is certainly true, but omits the important fact that *none* of the
> highest performance disk drives are available with an IDE interface.
> All the high end disk drives also have sophisticated head motion
> optimization algorithms which can substantially improve performance when
> the drive is given multiple commands at a time to work on.
I stand corrected. I had completely fogotten about this very important
fact. I wonder if one could simulate this aspect of SCSI function with a
sufficiently intelligent IDE controller (though at that point, there would
be significantly less cost advantage to IDE).
Ed Welbon; welbon@bga.com;
