I have an Ubuntu 64-bit Server with 7 4TB HDD's in a Btrfs Raid 6. A few days ago I executed the btrfs balance command but forgot that this takes quite a while. 'Cause of an update, I restarted my system while the balance was still being worked on. Now I'm only seeing the directory /dev/md0 but the mounting directory has always been /dev/md0p1 before, which is now missing. If I try the recover command on /md0 it can't find any btrfs volume.
How can I recover my data?
Thanks in advance.