On Sun, 2003-10-26 at 13:04, Dan Bar Dov wrote: > Is it possible to define PVs/VGs/LVs on one system, and then using lvscan > discover them all on another connected to the same storage? > > Is it then possible to serve those LVs further to other computers, say via > NFS, and then what about coherency between the two LVM servers? > > We are wotking on a storage gateway - iscsi from one side, FC on the other. > We are thinking on adding LVM functionality in there, but I have a feeling > it'll make HA impossible. > > Dan > I don't believe the above is officially supported, but it has been done by some people on the Linux-HA list. I've heard the Sistina will be offering a commercial version of LVM 2 that does officially supports clustered LVM. Also, EVMS 2.x, a opensource alternative to LVM from IBM specifically supports the above if you use the Linux-HA clustering solution, and should be extendable to other clustering environments. Both LVM 2 and EVMS 2 use DM as their core kernel component, so most of the difference is in user space (which is totally different). I believe EVMS also offers a couple of DM targets that are not supported by LVM 2. FYI: Whose iscsi implementation are you using. Is it GPL? Greg -- 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/
