*BSD News Article 31676


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From: michaelv@iastate.edu (Michael L. VanLoon)
Newsgroups: comp.unix.sys5.r3,comp.unix.pc-clone.32bit,biz.sco.general,comp.unix.sys5.r4,comp.unix.unixware,comp.os.linux.misc,comp.os.386bsd.misc,comp.periphs.scsi,comp.sys.ibm.pc.hardware.storage
Subject: Re: Anyone using a BusLogic 747S with multiple disk drives ?
Date: 14 Jun 94 15:55:55 GMT
Organization: Iowa State University, Ames, Iowa
Lines: 69
Message-ID: <michaelv.771609355@ponderous.cc.iastate.edu>
References: <CrDswJ.7qE@cti-software.nl>
NNTP-Posting-Host: ponderous.cc.iastate.edu

In <CrDswJ.7qE@cti-software.nl> pim@cti-software.nl (Pim Zandbergen) writes:

>I tried my luck with a couple of BusLogic 747S cards. They were to
>run with ISC Unix 4.0. At that time

>Although the cards seemed to work fine, the machine would lock
>up when multiple SCSI drives are accessed simultaneously.
>This could happen when accessing both tape and disk simultaneously,
>but would almost happen immediately when accessing two disks.
>When that happens, all processes seem to keep running, until
>they access the disk.

>I have tried all sorts of hardware.

>At the time, I was unable to test any other OS than ISC.
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

>Replacing the BusLogic with an Adaptec (1542 or 1742)
>would *always* fix the problem.

>The problem is that our BusLogic dealer says "the cards work
>just fine with SCO and Netware, it must be your ISC driver"
>and our ISC dealer claims I've got a hardware problem, as the card
>fails with two different ISC drivers.

It sounds to me like ISC has to be at fault.  I know of many people
using BusLogic bt747s cards happily under NetBSD and FreeBSD, and you
know some of them have to be using multiple drives.  I personally, run
a bt747s under NetBSD-current with a single Quantum SCSI-2 hard drive.
I have at times in the past, however, had an external SCSI-1 Exabyte
tape drive connected to the machine at the same time, and it worked
flawlessly (well, except for the damn tape drive eating a tape...
*grrrr*).

You might also check two other things: First, make *sure* you have
good SCSI cables and termination is completely correct.  You might
also try switching which device is the end of the chain and which
device gets end termination.  Also, make sure not more than two
devices have termination power enabled.  Second, have you tried this
combination in a different brand EISA machine?  Maybe your motherboard
manufacturer has a screwie EISA chipset or something.

>	1) Which OS are you running

NetBSD-current

>	2) Are you using native or aha1540 drivers

No.  This could likely cause you problems.  I am using the
NetBSD-current bt747s driver.

>	3) What is the firmware revision of your card

BIOS 4.70; Firmware 3.37.

>	4) What SCSI drives are you using
>	5) What kind of system/motherboard are you using

>The firmware on my cards is revision 1.37.

Are you sure that's not 3.37?  Otherwise, that sounds OOOoooooold.
If it is 1.37, I'd call BusLogic and ask for an upgrade.

-- 
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 Michael L. VanLoon                 Iowa State University Computation Center
    michaelv@iastate.edu                    Project Vincent Systems Staff
  Free your mind and your machine -- NetBSD free Un*x for PC/Mac/Amiga/etc.
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