>> 2) How can I perform mirroring using LVM? I know the kernel can do that >> on local disks. Is it possible for the kernel of two clustered machines >> to mirror two disks on an external storage? >> I am working on a HA cluster. >> Thanks for your attention >> Luca Lavorante Luca, If you want to have only one node at a time have access to the data, then the heartbeat mailing list may be a better place to ask. www.linux-ha.org In particular look thru their archives. The subject comes up often. If you want both to be able to have simultaneous access, then there are 3 or 4 choices I think. The only 3 I can think of offhand are Sistina's GFS, OpenGFS, and Oracles OCFS. The latter 2 are open source and not quite production ready in my opinion. Sistina has been selling their GFS as production ready for over a year.. Greg Freemyer _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/