From owner-freebsd-scsi@FreeBSD.ORG Thu Dec 17 15:46:49 2009 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 31DD5106568F; Thu, 17 Dec 2009 15:46:49 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4]) by mx1.freebsd.org (Postfix) with ESMTP id DEB698FC33; Thu, 17 Dec 2009 15:46:48 +0000 (UTC) Received: from localhost (localhost.codelab.cz [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id 280F419E046; Thu, 17 Dec 2009 16:46:47 +0100 (CET) Received: from [192.168.1.2] (r5bb235.net.upc.cz [86.49.61.235]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id B9BD019E045; Thu, 17 Dec 2009 16:46:44 +0100 (CET) Message-ID: <4B2A5264.5090302@quip.cz> Date: Thu, 17 Dec 2009 16:46:44 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.1.6) Gecko/20091206 SeaMonkey/2.0.1 MIME-Version: 1.0 To: Sossi Andrej References: <4B281279.6060706@quip.cz> <4B28F557.6000305@quip.cz> <4B293627.7050000@dotcom.ts.it> In-Reply-To: <4B293627.7050000@dotcom.ts.it> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-scsi@freebsd.org, freebsd-stable Stable , Ivan Voras Subject: Re: iSCSI initiator and Dell PowerVault MD3000i X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Dec 2009 15:46:49 -0000 Sossi Andrej wrote: > [...] > I use MD300i with FreeBSD 7.0 and 7.1 with iscsi-2.2.2. It work fine. > But be careful to configure MD3000i. MD3000i assign by default first > disk to preferred controller 0, second disk to preferred controller 1, > third disk to preferred controller 0, and so on. First, third, fifth... > disks is usable from FreeBSD, but second, fourth,... disks result unusable. > Work around: manually assign all disks to controller 0. > I'm talking with Dell's technical support, but Dell not support FreeBSD! > In any case, technical support tell me, the problem (maybe) is the > multipath. FreeBSD use only one path (only one IP) to communicate to > MD3000i. Second net interface in unused. > > I hope that I have been helpful. It was helpful! You are right, that MD Storage Manager set preferred controller path to 0 for odd Virtual Disks and 1 to even Virtual Disks. (I don't know why) And if I manually changed it to controller 0, I can access it by this preferred path, but can't access it by the other path. Does it mean I can't use multipath feature? Or what is the right behavior of this "preferred path" settings? Miroslav Lachman