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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mira.net.au!news.mel.connect.com.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!serv.hinet.net!news.uoregon.edu!hunter.premier.net!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news 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 Lines: 19 Message-ID: <536gcn$ba@uriah.heep.sax.de> References: <5345h6$82k@itchy.serv.net> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E 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. ;-)