I played around with this kind of setup for awhile, and found that there was no need to vgchange -an on the "Other nodes" when I was making changes on the "Admin node." I was also able to make volume changes on two Admin nodes at the same time. I figured I was probably just extremely lucky to win some extremely dangerous race conditions, so I wouldn't do it in production. I assume the cluster extensions to LVM (CLVM) are what allow multiple Admin actions on multiple Admin nodes? Anyway, just some friendly advice: follow the docs :) On Wed, 2006-02-22 at 08:27 -0500, Joshua ChaitinPollak wrote: > On Feb 22, 2006, at 8:12 AM, Patrick Caulfield wrote: > > > Joshua ChaitinPollak wrote: > >> > >> On Feb 22, 2006, at 3:49 AM, Heinz Mauelshagen wrote: > >> > >>> On Tue, Feb 21, 2006 at 04:22:10PM -0500, Joshua ChaitinPollak > >>> wrote: > >>>> Hello, I found this mention of sharing Volume Groups across > >>>> Clusters > >>>> on the LVM howto: > >>>> > >>>> http://www.tldp.org/HOWTO/LVM-HOWTO/sharinglvm1.html > >>>> > >>>> Am I right in assuming that this means you can have a single volume > >>>> group active on multiple nodes in a cluster, provided that you > >>>> doing > >>>> mount the same logical volume on more than one node at a time? > >>> > >>> Yes, you assume right *but* you need a cluster filesystem (eg, GFS) > >>> as well to be able to mount shared logical volumes on multiple nodes > >>> at once or you mess up the data. > >> > >> Right, but I don't need GFS if I'm only going to mount the file > >> system > >> on one machine at a time, right? > > > > No, just a lot of care and discipline :) > > Great! And, my co-workers keep telling me, "You lack discipline!" > _______________________________________________ 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/
