set -e set -v mkfs.btrfs /dev/sdb mount /dev/sdb /mnt/cassandra chown salvus. -R /mnt/cassandra cd /mnt/cassandra ln -s /home/salvus/salvus/salvus/data/local/cassandra/lib . btrfs subvolume create /mnt/cassandra/.snapshots/ chown salvus. /mnt/cassandra/.snapshots/ # inspect filesystems df -h