From owner-freebsd-scsi@FreeBSD.ORG Mon Aug 4 12:31:30 2003 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 96A9437B401 for ; Mon, 4 Aug 2003 12:31:30 -0700 (PDT) Received: from magic.adaptec.com (magic-mail.adaptec.com [208.236.45.100]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1685C43FAF for ; Mon, 4 Aug 2003 12:31:30 -0700 (PDT) (envelope-from gibbs@scsiguy.com) Received: from redfish.adaptec.com (redfish.adaptec.com [162.62.50.11]) by magic.adaptec.com (8.11.6/8.11.6) with ESMTP id h74JVTo29377; Mon, 4 Aug 2003 12:31:29 -0700 Received: from [10.100.253.70] (aslan.btc.adaptec.com [10.100.253.70]) by redfish.adaptec.com (8.8.8p2+Sun/8.8.8) with ESMTP id MAA08952; Mon, 4 Aug 2003 12:31:15 -0700 (PDT) Date: Mon, 04 Aug 2003 13:32:59 -0600 From: "Justin T. Gibbs" To: Gary Stanley , freebsd-scsi@freebsd.org Message-ID: <1350320000.1060025579@aslan.btc.adaptec.com> In-Reply-To: <6.0.0.12.0.20030731062022.020a25d0@localhost> References: <6.0.0.12.0.20030731062022.020a25d0@localhost> X-Mailer: Mulberry/3.1.0b5 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: Re: Recommended Cabling (u320) X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: "Justin T. Gibbs" List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Aug 2003 19:31:30 -0000 > Can anyone recommend a company that makes decent Ultra320 cables to connect > 2 SAF-TE (GEM318P controller) backplanes (with enclosurement) to a > supermicro board? Seems the cables we are getting from Supermicro are not > up for the long haul. Are you connecting them to the same SCSI channel? If so, I trust you are attaching them like so: Adapter+------+Backplane 1+--+Backplane 2+-Terminator You can't hook them up like this: Adapter+------+Backplane 1+-Terminator | +--+Backplane 2+-Terminator | +-Terminator Even in configurartion 1, there are lots of backplanes out there that fair much worse than a good U320 cable. You may find that your backplanes just are not good enough to run U320. -- Justin