From mboxrd@z Thu Jan 1 00:00:00 1970 From: "DJ TweeQ" Mime-Version: 1.0 Message-ID: Subject: [linux-lvm] Sharing LVM's via NFS on Redhat 8.0 Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Thu Feb 20 13:44:02 2003 List-Id: Content-Type: text/plain; format=flowed; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com Phone rings and i forget to complete my previous post :) Regarding Sharing LVM LV's via NFS on Redhat 8.0...ie. mounting an LV from another machine while already having a LV on the same machine. Is it ok or not ok? I was talking to a buddy and he doesn't think it's a problem or an issue but... the current documentation on Sistina's site states that sharing LV's is dangerous unless it's a SCSI or Fibre Storage Device?...and not only that ...adminisitration can only be done on one node? (is it really possible to create/resize lv's from one node/machine to another (that has an LV or was it meant to mean that it's only possible on cluster aware network storage devices)??? .... http://tldp.org/HOWTO/LVM-HOWTO/x1232.html under "Dangerous Operations - Sharing Logical LVM Volumes" ie. >If you need to do any changes to the LVM metadata (regardless of >whether >it affects volumes mounted on other nodes) you must go through >the >following sequence. In the steps below ``admin node'' is any >arbirarily >chosen node in the cluster. Admin node >Other nodes >---------- ----------- > Close all Logical volumes (umount) > vgchange -an > > vgscan > vgchange -ay I'm thinking that it might not be a good idea to try to do maintenance on a LV that is mounted on another system...but i think it makes a whole heck of alot of sense to create/resize/mount an LV on a system before trying to mount it via an NFS share. :) Any comments? I personally don't think it would be an issue either (to mount an LV on another box/system via an NFS mount) but i'd rather not take the chance of messing up any of the data on those LV's cuz their stuffed :) Oh one other thing...if it has been proven that a Redhat 8.0 2.4-24?.x kernel can be patched to LVM 1.0.6+ ....will the data on those LV's be affected in any way or will it all be ok? :) _________________________________________________________________ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus