From mboxrd@z Thu Jan 1 00:00:00 1970 From: urgrue Subject: Re: Expanding an LVM Date: Tue, 19 Aug 2008 13:26:57 +0300 Message-ID: <48AA9FF1.7020301@bulbous.org> References: <48AA8E4C.4663.242117B3@dermot.sciencephoto.co.uk> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <48AA8E4C.4663.242117B3@dermot.sciencephoto.co.uk> Sender: linux-admin-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: dermot@sciencephoto.co.uk Cc: linux-admin@vger.kernel.org Dermot Paikkos wrote: > Hi, > > I think I may have made a error in the method I have used to create > more space on one of my servers. > > Here's what I've done. > > 1) Backed up the LVM volume (phew) > 2) Added some disks to the storage array (HP MSA 20) > 3) Used the HW Array configurator to do and on-line extend of the > Raid Array. > > It was at this point I realised that I hadn't un-mounted the volume > in question. > > The other thing I am trying to figure out is, how I am going to > extend a Physical Volume? I think the procedure should have been to > add a completely new array and use pvcreate, vgextend, lvextend and > extended the filesystem (ext3). > > Can anyone confirm if the procedure above is the correct? Correct. You dont expand the PV, you make a new partition with fdisk in the new space and then create a pv on it, add it to the vg with vgextend, and the lvextend and then ext2online/resize2fs/whatever to expand the fs. > Right now I am considering deleting the RAID container completely and > re-creating and restoring rather than waste any more time but before > I do I'd like to hear it if sounds like the procedure is bound to > fail. > > At the moment I think the best I can hope for is that the volume will > be fine but the extra disk-space will never be seen? > if you dont see the new space in fdisk, you might have to reboot, or do echo "- - -" > /sys/class/scsi_host/hostXXX/scan.