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 m328NFNW028554 for ; Wed, 2 Apr 2008 04:23:15 -0400 Received: from carlit.cesca.es (carlit.cesca.es [84.88.0.2]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m328MrYv024914 for ; Wed, 2 Apr 2008 04:22:54 -0400 Received: from carlit.cesca.es (localhost [127.0.0.1]) by carlit.cesca.es (Postfix) with ESMTP id 88C1D331B72 for ; Wed, 2 Apr 2008 10:22:47 +0200 (CEST) Received: from [192.94.163.17] (santalis.usr.xc.cesca.cat [192.94.163.17]) by carlit.cesca.es (Postfix) with ESMTP id 5B63C332056 for ; Wed, 2 Apr 2008 10:22:47 +0200 (CEST) Message-ID: <47F341B2.2080100@cesca.es> Date: Wed, 02 Apr 2008 10:20:02 +0200 From: Jordi Prats MIME-Version: 1.0 Subject: Re: [linux-lvm] LVM Questions References: In-Reply-To: Content-Transfer-Encoding: 8bit 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="utf-8"; format="flowed" To: LVM general discussion and development Hi, You could still use raid using pvmove: You could create a raid and then use pvmove to relocate data present on your disk to your new raid device. cheers, Jordi Nicholas Muguira wrote: > > I am trying to judge the ability of LVM to address a problem I > currently have, and I have few questions: > > 1) Is there a way to configure LVM so that the data on remaining PV�s > in a VG are is accessible after a PV fails? > > 2) Is there a way to configure LVM so that the LV will still be > accesible and readable/writable if a PV fails while in use? > > 3) Assuming groupings of external drives, can a LV be created and > exported on each group of the same name and then imported into > different systems. For example assuming 10 drives, drives a-e are in > group 1 and drives f-j are in group 2. Using System A with drives a-e > connect to /dev/sda-e create a parittion that spans the entire drive > for each drive. Create a PV on each partition (/dev/sd[a-e]1). Create > a VG named test with all partitions (/dev/sd[a-e]1). Create a LV that > covers all of the VG test. Mount the LV and format it (ext3 in this > case). Umount and vgexport the vg test. Repeat the steps with drives > f-j with same VG and LV names. Connect group 1 to System B and > vgimport VG test, create LV with it and mount the filesystem. Umount > the filesystem and disconnect group1. Connect group 2 to System B and > vgimport VG test and mount the filesystem (using LV previously created)? > > Raid is unavailable due to already deployed hardware, and I realize > that LVM is not Raid and will not give me a means to recover the data > on the failed HDD. > > Thanks, > Nick > > This email and any files transmitted with it are confidential and are > intended solely for the use of the individual or entity to whom they > are addressed. If you are not the original recipient or the person > responsible for delivering the email to the intended recipient, be > advised that you have received this email in error, and that any use, > dissemination, forwarding, printing, or copying of this email is > strictly prohibited. If you received this email in error, please > immediately notify the sender and delete the original. > > ------------------------------------------------------------------------ > > _______________________________________________ > 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/ -- ...................................................................... __ / / Jordi Prats C E / S / C A Dept. de Sistemes /_/ Centre de Supercomputaci� de Catalunya Gran Capit�, 2-4 (Edifici Nexus) � 08034 Barcelona T. 93 205 6464 � F. 93 205 6979 � jprats@cesca.es ......................................................................