On Wed, 2004-01-28 at 14:04, Chris Beck wrote: > >I don't think that is a trivial issue, and I think the code would have > >to implemented in the kernel. > > > > > Why the kernel? ... surely reading the flag tables could be done in user > space? I think you have the necessary logic spot on. I don't think the COW flag table is accessible from userspace, but I could be wrong. FYI: I am a LVM user, not a developer. > > >New code would also have to be developed to apply the above blocks. > > > > > Hmmm. I can mess around in perl and java as well as the next guy, but > my c-fu is weak, very weak. How much would it cost to sponsor someone > to do this do you think? I don't have any idea. If your serious, I would recommend doing it with LVM 2 (requires DM in the kernel), since DM is part of 2.6.x vanilla and 2.6.x will not likely ever support LVM 1.x. In that case, I would post on the dm-devel list. There seem to be a few non-Sistina people that are very knowledgable and post regularily. http://lists.sistina.com/mailman/listinfo/dm-devel FYI: Since Sistina is in the process of being bought by Redhat, I doubt they would consider a new project (or sub-project) right now. HTH 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/