Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!bbs!karl
From: karl@naitc.naitc.com (Karl Denninger)
Newsgroups: comp.unix.sysv386
Subject: Re: Recommendations for fixed-disk SCSI Controllers
Summary: Works great -- less filling
Message-ID: <1991Jan06.223538.27795@naitc.naitc.com>
Date: 6 Jan 91 22:35:38 GMT
References: <1990Dec28.233946.7381@csn.org> <37532@cup.portal.com>
Distribution: na
Organization: AC Nielsen Bannockburn
Lines: 31

In article <37532@cup.portal.com> DeadHead@cup.portal.com (Bruce M Ong) writes:
>The Interactive Release Notes for 2.2 says on page 19 that on machines
>with SCSI primary adaptors and multipe SCSI fixed disks doing very heavy
>disk I/O, the kernel may panic or the system may hang. Has anybody
>experienced this problem with Future Domain or Adaptec host adaptors?

Sure, if you have a marginal motherboard.  

I am running 3 disks and a tape on SCSI, and haven't had a panic related to
fixed disk access yet.  And those disks get the crap pounded out of them
regularly.

Here at Nielsen we have a few of these too, and no problems either.

>Also, I found out that if you want to have a > 40MB tape backup, you can
>only go with a SCSI tape drive with Interactive 2.2.
>
>Now, I need a high capacity tape backup unit, but I cant use SCSI unless
>I know that the problem mentioned above is not a problem or it has been
>fixed.  Is there any other high capacity tape backup unit that ISC supports
>which is not SCSI based?

Huh?  What about the Wangtek and Archive drivers for board-based
(Non-SCSI/QIC02) tape units?  They are on the driver disks!

--
Karl Denninger	AC Nielsen
kdenning@ksun.naitc.com
(708) 317-3285
Disclaimer:  Contents represent opinions of the author; I do not speak for
	     AC Nielsen on Usenet.