*BSD News Article 80008


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Spontaneous lockups
Date: 5 Oct 1996 20:28:07 GMT
Organization: Private BSD site, Dresden
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zeno@serv.net (Sean T. Lamont) wrote:

> for about a week and a half, I've been trying to debug a problem on our
> system causing spontaneous lockups. The problem started cropping up after
> we added a couple of new disks and a second adaptec 2940 controller.

Make sure your SCSI termination is correct.  Apart from cabling
problems and total mis-termination, i think TERM POWER glitches are
among the most common problems.  It's best to make all drives _not_
supplying TERM POWER (alas, it's usually the default to supply it),
and have the termination line on the bus being only powered by the
host adapter.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)