From owner-freebsd-scsi Tue Apr 16 11: 5:47 2002 Delivered-To: freebsd-scsi@freebsd.org Received: from rover.village.org (rover.bsdimp.com [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 11BC937B41E for ; Tue, 16 Apr 2002 11:05:44 -0700 (PDT) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.11.3/8.11.3) with ESMTP id g3GI5gi38214; Tue, 16 Apr 2002 12:05:43 -0600 (MDT) (envelope-from imp@village.org) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.11.6/8.11.6) with ESMTP id g3GI5eQ04301; Tue, 16 Apr 2002 12:05:41 -0600 (MDT) (envelope-from imp@village.org) Date: Tue, 16 Apr 2002 12:05:16 -0600 (MDT) Message-Id: <20020416.120516.98708693.imp@village.org> To: ken@kdm.org Cc: scsi@FreeBSD.ORG Subject: Re: How to get 160MB/s LVD drives to use 160MB/s From: "M. Warner Losh" In-Reply-To: <20020416101205.A77341@panzer.kdm.org> References: <20020416.000750.89789192.imp@village.org> <20020416100426.A77224@panzer.kdm.org> <20020416101205.A77341@panzer.kdm.org> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org In message: <20020416101205.A77341@panzer.kdm.org> "Kenneth D. Merry" writes: : > There are several possibilities. : > : > - your cabling or termination isn't right for Ultra160. (You need a : > "twisty flat" cable with a terminator block on the end.) : > - you jumpered the drives for single ended mode : > - the SCA->HD68 adapters don't do LVD : > : > I would guess that the last one is probably the problem, since the first : > two are more obvious. : : One other note -- the jumpers on the adapter are probably used for setting : the SCSI ID, delayed start, led output, etc. (There may be an LVD jumper, : but it wouldn't make as much sense -- why should the adapter care?) The SCA adapter box said that it was rated for LVD. The cabling is right for Ultra 160 (the "crinkle" twisted pairs), but the terminator says "SCSI LVD SE TERMINATOR" on it and it was pointed out on IRC that this was suspect. I'm taking one of the drive to work today to see if I can play with it there on my 160 system there.... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message