From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m3UDUTYX013531 for ; Wed, 30 Apr 2008 09:30:29 -0400 Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m3UDUHRV023942 for ; Wed, 30 Apr 2008 09:30:18 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JrCNw-00019N-SJ for linux-lvm@redhat.com; Wed, 30 Apr 2008 13:30:12 +0000 Received: from 202.3.112.9 ([202.3.112.9]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 30 Apr 2008 13:30:12 +0000 Received: from rrs by 202.3.112.9 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 30 Apr 2008 13:30:12 +0000 From: Ritesh Raj Sarraf Date: Wed, 30 Apr 2008 18:27:00 +0530 Message-ID: References: <3120c9e30804290605w774b8bc4s68265a9cc74843e9@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8Bit Sender: news Subject: [linux-lvm] Re: Linux LVM performance using multiple iSCSI targets 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" To: linux-lvm@redhat.com ???? Anuj Singh wrote: > > I used lvm and created a logical volume say MyBigStorage on FileServer > using /dev/sda1, /dev/sda2, /dev/sda3..../dev/sdaN as physical disks > (these are the raw disks exported from iscsi-target machines). > Is it only sda or sda/sdb and so on? You should rather be using device IDs. I am not sure how PVs are scanned during OS boot up. If names are hardcoded, you will be in trouble. > > 4. Any other issue which you can suggest with above approach? > You are not using dm-multipath for this setup? Have you tested the current configuration with some of the iSCSI devices made unavailable in between and exceeding the timeout period? Ritesh -- If possible, Please CC me when replying. I'm not subscribed to the list.