Date: Wed, 29 Sep 1999 08:31:19 -0700 (PDT) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: bmah@CA.Sandia.GOV Cc: blk@skynet.be (Brad Knowles), adhir@forumone.com (Alok K. Dhir), vladimir-scsi@math.uic.edu, freebsd-stable@FreeBSD.ORG Subject: Re: problems with adaptec 2940 cards on 3.3-STABLE Message-ID: <199909291531.IAA19357@gndrsh.dnsmgr.net> In-Reply-To: <199909291517.IAA21085@nimitz.ca.sandia.gov> from "Bruce A. Mah" at "Sep 29, 1999 08:17:32 am"
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> If memory serves me right, Brad Knowles wrote: > > At 10:11 PM -0400 1999/9/28, Alok K. Dhir wrote: > > > > > I'd suspect the external SCSI cable if disconnecting it (and presumably > > > enabling termination on the card) fixed the problem... I wouldn't rule > > > out cables just because you have 2 machines with the same hardware... > > > > I wouldn't be surprised if the cables were marginally okay for UW > > use, but fail miserably for U2W LVD use. They may not even be > > differential SCSI cables, and in that case I would expect major > > problems in trying to use them with U2W LVD drives. > > It's not clear whether this post is applicable or not to this > situation, but... > > A lesson I learned last week is to check the connectors for bent pins. > I had a 2940U2W that I was convinced was broken, until one of my > cow-orkers checked the connectors and found a bent pin. I wasted about > a half a day because it didn't dawn upon me to check for this failure > mode. To make you feel better I have spent 2 days before I found the bent pin on a SCSI bus, and 2 weeks on an DG MV/8000 minicomputer before we found the 100 ohm backplane connection :-). -- Rod Grimes - KD7CAX - (RWG25) rgrimes@gndrsh.dnsmgr.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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