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 iADAHEr20359 for ; Sat, 13 Nov 2004 05:17:14 -0500 Received: from rproxy.gmail.com (rproxy.gmail.com [64.233.170.201]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id iADAHDIs021144 for ; Sat, 13 Nov 2004 05:17:13 -0500 Received: by rproxy.gmail.com with SMTP id f1so362695rne for ; Sat, 13 Nov 2004 02:17:13 -0800 (PST) Message-ID: <89af10f90411130217467c439@mail.gmail.com> Date: Sat, 13 Nov 2004 15:47:13 +0530 From: ashwin chaugule Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] raid 1 on a single disk Reply-To: ashwin chaugule , 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 Hi, Im trying to get RAID 1 working on a single disk. Can anyone tell me if thats possible ? Do I have to use LVM for that ? So, far this is what i've understood ... Now.. I have a separate disk on which I want RAID 1. so I create one PV on that disk (/dev/hdd) create a logical vol grp. add 4 LV's , for four filesystems of the same type ... then in /etc/raidtab or whatever .. say that i have 4 disks and for each disk specify each LV partition .. then mkraid /dev/md0 ... Is this correct if I want data to be mirrored across all 4 partitions , using RAID 1 on a single disk ? -- Ashwin Chaugule Embedded Systems Engineer Aftek Infosys ltd. [Embedded Division]