How to clone btrfs filesystem into different medium preserving snapshots' sharing data

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http://unix.stackexchange.com – I have decided to give btrfs raid capabilities a try. I set up a btrfs with sudo mkfs.btrfs -m raid10 -d raid10 /dev/sda9 /dev/sdb9 /dev/sdc9 /dev/sdd9 Now I want to clone my existing btrfs partition, (which sits on top of linux-raid). can't use a simple cp -a, because there is over 40 snapshot-based backups (which I wish to preserve), and I would simply overfill all the storage I can spare multiple times. So far I can see two options: partclone.btrfs -s /path/to/original/fs -o /dev/sda9 -b and I suppose I would also need to btrfs balance start /dev/sda9 and do: incrementaly copy wi (HowTos)