On Thu, May 09, 2002 at 09:54:40AM -0700, Au, Richard wrote: > Hi, > > I'm wondering if anyone has used LVM in a high-availibility cluster > where two servers are connected to shared storage (the physical > volumes). If so, which cluster solution did you use? Will there be > problems if the logical volumes are visable to both servers, even if > only one of them has them mounted? Thanks! Provided you're either using GFS as the file system or being VERY careful to mount the filesystem on only one node at a time you can do this. The key is just to be VERY careful. If you need to do any LVM commands you MUST umount filesystems on all other nodes vgchange -an on all other nodes do the LVM metadata changes vgscan on all nodes vgchange -ay on all nodes. The safe thing to do is to have only one node have the LVM commands available to it (apart from vgscan & vgchange) and be VERY careful. I'll say that again: Be VERY careful ! patrick _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
