On Tue, Apr 22, 2008 at 9:38 AM, Stephane Chazelas <stephane.chazelas@emerson.com> wrote: > actually I've spent the last 3 days trying to put zumastor (well > actually ddsnap as I didn't use zumastor in the end) in place > here. > > The fact that there are user space daemons involved in the > process make it very difficult to use it for the root file > system. I had to use a number of hacks for that. You're braver than us. We haven't tried using it for the root fs yet. > Also, it seems that you can't snapshot a live (mounted) file > system as you would do with LVM2 unless you have setup that FS > beforehand as a virtual ddsnap device (LVM2 is able to suspend > the device, and reload it as a snapshot_origin for that, I > couldn't manage to do the same with ddsnap). Hmm. I'll bring up that use case with Dan Phillips, see what he says. > I also tried applying the patches to 2.6.25 and got some oops > (2.6.24.2 is fine though). > > Once I've finalised it, I can post what I've come up with if > anyone is interested. Please do (heck, post it to the zumastor list, too). - Dan _______________________________________________ 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/
