From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with SMTP id i250DQ812850 for ; Thu, 4 Mar 2004 19:13:26 -0500 Received: from gw.mml.usyd.edu.au (client-101.mml.usyd.edu.au [129.78.188.101]) by mx1.redhat.com (8.11.6/8.11.6) with SMTP id i250DOb11445 for ; Thu, 4 Mar 2004 19:13:25 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by gw.mml.usyd.edu.au (Postfix) with ESMTP id 0D16F465A for ; Fri, 5 Mar 2004 11:11:48 +1100 (EST) Received: from gw.mml.usyd.edu.au ([127.0.0.1]) by localhost (gw.mml.usyd.edu.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 04977-04 for ; Fri, 5 Mar 2004 11:11:47 +1100 (EST) Received: from cerebus.mml.usyd.edu.au (cerebus.mml.usyd.edu.au [192.168.1.82]) by gw.mml.usyd.edu.au (Postfix) with ESMTP id 808614651 for ; Fri, 5 Mar 2004 11:11:47 +1100 (EST) From: Franc Carter Subject: Re: [linux-lvm] LVM Multi Path Support References: <20040303190349.14912.qmail@web60910.mail.yahoo.com> <20040304093054.GS662@reti> In-Reply-To: <20040304093054.GS662@reti> MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200403051112.38529.franc@tech.sirca.org.au> Sender: linux-lvm-admin@redhat.com Errors-To: linux-lvm-admin@redhat.com Reply-To: linux-lvm@redhat.com List-Help: List-Post: List-Subscribe: , List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: Date: Thu Mar 4 19:11:08 2004 List-Id: Content-Type: text/plain; charset="us-ascii" To: linux-lvm@redhat.com Hi, I have a related question. I have just set up LVM on the LUNS from a HDS-9570 with a qla-2300 driver in failover mode. This results in each LUN being exposed to the operating system twice, once for each controller. However when a controller fails the card transparently maps the requests to the secondary controller so that the original scsi target still works. LVM appears to do the 'right thing for me' in that it recognises that the the two PVs are one (I assume via the UUID) and ignore the second LUN. I'd like to know if this is just good luck, or if it's behaviour I can rely ? thanks On Thursday 04 March 2004 20:30, Joe Thornber wrote: > On Wed, Mar 03, 2004 at 04:03:49PM -0300, Eduardo Dias wrote: > > Dear All, > > > > I would like to know if LVM Linux has (or will) support to multi path links? > > There is a v. old patch kicking around that adds some sort of multipath > support to LVM1. Search this list to find it. It hasn't ever been > part of an official release. > > LVM2 doesn't support multipath but we're currently developing a > multipath target for device-mapper, and Christophe Varoqui is writing > a standalone userland tool to drive it. The current thinking is that > the LVM2 tools will just use the devices that Christophes tool > creates. > > - Joe > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > -- Franc Carter Ph:61-2-8374-5071 Fax: 61-2-8374-5070 Systems Manager, SIRCA Ltd http://www.sirca.org.au/ DISCLAIMER: The contents of this email, inclusive of attachments, may be legally privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this message in error or are not the intended recipient, you should destroy the email message along with any attachment(s). Unintended recipients of this email are prohibited from retaining, disclosing, distributing or using any information contained herein. This email is also subject to copyright. No part of it should be reproduced, adapted or transmitted without the written consent of the copyright owner.