IBM-PC and SCSI

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Sat Dec 30 10:11:18 2000

From: Richard Erlacher <edick_at_idcomm.com>


>Well, Allison, you're memory's getting to be like mine. I've got three
of
>the 2266's and they all seem to agree they're about 1GB in capacity.


Well, I knew it wasnt a 1mb drive as the smallest thing I'd ever seen as
scsi
was 10mb.

>BTW, the drives don't seem to have a problem with the SCSI-1/SCSI-2
thing,
>but the software, often written the way it is because the authors
weren't
>born before SCSI-2, don't realize that they get the same effect using
the
>SCSI-1 command set. As stupidly as SCSI is used on PC's, no overlapped
>seeks, no command queuing, no disconnect, little use of synchronous
mode,
>they're not even getting SCSI-1 performance.


No question about that. PC software and OSs generally dont use scsi
well.
My standard of comparison is PDP-11/RSTS or RSX and VAX/VMS where
they work a disk hard!

Allison
Received on Sat Dec 30 2000 - 10:11:18 GMT