From owner-freebsd-questions Tue Sep 24 16: 7:23 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2174837B401 for ; Tue, 24 Sep 2002 16:07:20 -0700 (PDT) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5319F43ED8 for ; Tue, 24 Sep 2002 16:07:15 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id E31BE812E1; Wed, 25 Sep 2002 08:36:55 +0930 (CST) Date: Wed, 25 Sep 2002 08:36:55 +0930 From: Greg 'groggy' Lehey To: Steve Shorter Cc: questions@freebsd.org Subject: Re: Silly vinum question Message-ID: <20020924230655.GM76938@wantadilla.lemis.com> References: <20020924104934.A37287@nomad.lets.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020924104934.A37287@nomad.lets.net> User-Agent: Mutt/1.4i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tuesday, 24 September 2002 at 10:49:34 -0400, Steve Shorter wrote: > Howdy! > > I have 2 disks on separate SCSI busses that are > striped to form a single vinum volume. They are recognized as > da0 and da1 > > I want to add 1 more disk to each SCSI buss and create > another striped vinum volume, but keep the initial vinum volume > intact. > > The issue ... > > When the 2 disks are added to SCSI busses the first 2 disks in > the initial volume are not recognized by the system in the same way. > > For instance ... > > disk SCSI buss ORIGINAL CONFIG PLANNED CONFIG > > disk1 1 da0 da0 > disk2 2 da1 da2 > disk3 1 da1 > disk4 2 da3 > > The original vinum volume is configured on da0 da1 > > Under the planned config the original vinum volume will > now be on da0 da2. > > While I could wire down the devices in kernel config .. > > Also I want to stripe to disks on separate busses so > moving the secound disk onto the same bus as disk1 is not a good > option > > I am still wondering if vinum will be able to build > volumes correctly based only on the information stored in the > per disk configuration even if the system sees them differntly. Vinum does not use device names. That's why you have to assign a drive name to each device (spindle). You can make your proposed change, without wiring down, and it should Just Work. You can even mix your drives any way you want, and it should still Just Work. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message