From owner-freebsd-scsi Wed Jan 12 10:42:34 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from duke.cs.duke.edu (duke.cs.duke.edu [152.3.140.1]) by hub.freebsd.org (Postfix) with ESMTP id 41B9314CAF for ; Wed, 12 Jan 2000 10:42:31 -0800 (PST) (envelope-from gallatin@cs.duke.edu) Received: from grasshopper.cs.duke.edu (grasshopper.cs.duke.edu [152.3.145.30]) by duke.cs.duke.edu (8.9.1/8.9.1) with ESMTP id NAA20595; Wed, 12 Jan 2000 13:42:29 -0500 (EST) Received: (from gallatin@localhost) by grasshopper.cs.duke.edu (8.9.3/8.9.1) id NAA85411; Wed, 12 Jan 2000 13:41:59 -0500 (EST) (envelope-from gallatin@cs.duke.edu) From: Andrew Gallatin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 12 Jan 2000 13:41:58 -0500 (EST) To: mjacob@feral.com Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: 68 <-> 80 pin SCSI converter In-Reply-To: References: <14460.38703.454117.921172@grasshopper.cs.duke.edu> X-Mailer: VM 6.43 under 20.4 "Emerald" XEmacs Lucid Message-ID: <14460.51878.772844.467809@grasshopper.cs.duke.edu> Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Matthew Jacob writes: > > > > > I apologize for what may be a fairly silly question: Is there any > > clean way to attach a 68-pin drive to an 80-pin SCA backplane? > > > > My group is purchasing a server-class box which comes with an U2 > > hot-pluggable backplane with 80-pin SCA connectors. We are hoping > > to reuse some existing 68-pin U2 cheetahs from another machine. > > > > I have looked for 68-80 pin converters for a while & all I can find > > are adapters which allow you to attach an 80-pin SCA drive to a 68-pin > > cable. I have not found any method for attaching a 68-pin drive to an > > 80-pin SCA backplane. Does such a best exist? > > I'd try http://www.amp.com to get a part no, if it exists, and then search > around for someone who'll sell it. I'd also check Kingston- the folks who > make slide rail carriers may have this. > > I'd doubt that this is a great idea because the whole point of SCA is it > combines signal power and mounting in one deal- to go form SCA, you'll > have to come out with both the MOLEX +5/+12 connector, the 68 pin cable > connector, and it won't necessarily have the right mounting and any length > of 68 pin longer than 50mm is gonna add signal noise. > OK, I haven't been able to find any connectors & your argument against doing it even if it were possible sounds valid. I'll see if I can get the powers that be to purchase new drives too. Thanks for the help, Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message