Hi all, When I started to use LVM snapshots, I presumed that it was easy to restore a system to such a snapshot. As far as I can see now, this presumption was incorrect... People on the internet write that I should dump the whole snapshot using dd and then write it over the original volume. This actually implies that I need another device with at least the size of the original volume available to dump to. In my situation, this means that I need about 2 TB free space to recover this snapshot! Isn't there a more sophisticated way to restore the snapshot than just dumping it? 1) create snapshot of /dev/myvolumegroup/myvolume to /dev/myvolumegroup/mysnapshot 2) dd if=/dev/myvolumegroup/mysnapshot of=/tmp/mysnapshot.dd 3) lvremove /dev/myvolumegroup/mysnapshot 4) dd if=/tmp/mysnapshot.dd of=/dev/myvolumegroup/myvolume Something like: 1) lvrevert /dev/myvolumegroup/mysnapshot /dev/myvolumegroup/myvolume I'd like to hear your thoughts on this, because I think it should be fairly easy to restore a COW snapshot. Or am I wrong and missing something? Regards! Bas _______________________________________________ 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/
