We have DRBD volumes that are presented to guests, and we often snapshot them with the intention of reverting back to the snapshots. I understand in LVM, snapshoting then working with the snapshot is preferred when doing something experimental but often we make the snapshot simply as a backup to revert to if something goes wrong (known good state).
Mounting the disks and rsyncing is possible but sometimes the contents is complex with multiple partitions (or LV's inside the disk). Using dd to copy all the data is also possible but it is very time consuming. What I was more hoping to do is can I use lvconvert and convert a snapshot into a normal linear lv? Can I mirror a snapshot then use that as a linear lv?