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From: brando@uicsl.csl.uiuc.edu (Brandon Brown)
Newsgroups: comp.unix.sysv386
Subject: Re: Recommendations for fixed-disk SCSI Controllers
Message-ID: <1991Jan4.145756.11945@ux1.cso.uiuc.edu>
Date: 4 Jan 91 14:57:56 GMT
References: <1990Dec28.233946.7381@csn.org> <37532@cup.portal.com>
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In comp.unix.sysv386 you write:

>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?

I installed a system for a customer that is a Unix development house, and they
pound the hell out of their SCSI system daily. I have not yet had a kernel
hang of any type. My current problem with ISC is a networking one. It seems
after awhile the telnet session just "hang"...

>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?

Well, if you are still set on a non-SCSI product, archive Viper 150 tape drive
streams very well. It is essentially the same as the SCSI product but with its
-own tape controller, etc. It also uses a lower numbered interrupt, so I have
found that I had to forgo some other device, like a serial port, etc.

Good Luck!