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 ESMTP id i5AKFL017317 for ; Thu, 10 Jun 2004 16:15:21 -0400 Received: from nerim.mx.42-networks.com (gw.c9x.org [213.41.131.17]) by mx1.redhat.com (8.12.10/8.12.10) with SMTP id i5AKFKi5011312 for ; Thu, 10 Jun 2004 16:15:21 -0400 Date: Thu, 10 Jun 2004 22:32:47 +0159 From: Jedi/Sector One Message-ID: <20040610203309.GA18186@c9x.org> Mime-Version: 1.0 Content-Disposition: inline Subject: [linux-lvm] Multipath without round-robin? Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@redhat.com Hello. I'm trying to get multipath working with LVM2 (2.6.7-rc2-udm2 kernel) with an LSI storage array. The array has two FC controllers, HBAs are two identical Qlogic 2340. On the array, "preferred" controllers are assigned to each LUN. Unfortunately, it looks like dm-multipath always does round-robin load balancing. The result is that the array fills up the (SANtricity) error log with messages like "LUN was accessed through the wrong controller". Is there any way to keep failover abilities without load balancing? Best regards, -Frank.