>> I actually prefer backing up LVMs.. I use the snapshot feature which >> means I can backup a live volume. Works well. > > But I can't use snapshot feature because under these lvm partitions there are ZFS, > NTFS and so on filesystems that linux can't access ... Not sure that I'm understanding.. The snapshots are block level, so no knowledge of the filesystem on the LVs are needed. In fact, some are raw devices and don't have filesystems at all.