Newsgroups: comp.sys.ibm.pc.hardware
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cunixf.cc.columbia.edu!liggio
From: liggio@cunixf.cc.columbia.edu (Vincent J. Liggio)
Subject: SCSI slowness
Message-ID: <1991Mar25.161209.564@cunixf.cc.columbia.edu>
Sender: liggio@cunixf.cc.columbia.edu (Vincent J. Liggio)
Reply-To: liggio@cunixf.cc.columbia.edu
Organization: Columbia University
Date: Mon, 25 Mar 91 16:12:09 GMT


I have a Quantum ProDrive 170S and an Adaptec 1522 controller (SCSI-2).
Supposedly, I should be getting upwards of 2 MB/sec out of this
combination, but when I use coretest (v 2.91), it tells me I am getting a
mere 900 k/sec.  The ProDrive has a 64k cache built in on board.  Some
system details:
	Mylex MXA-33, 386 33 mhz motherboard
	8 mb ram
	Adaptec 1522 SCSI-2 contoller
	Quantum ProDrive 170S
	DOS 4.01

I called adaptec but they weren't helpful.  They said call your dealer,
since their dealers are supposedly knowledgeable about the card.  Of course
this didn't work.  I checked out all the manuals, and I think that I have
the zillion and one jumpers set correctly, but I am still sluggish.  Any
clues???  Any ways I can check on the cache being implemented (it goes on
and off and changes sizes depending on the mode that the drive is running
in).

Vince


Stallion                                                                Tigger
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