BTRFS

• apt install btrfs-tools

As provided by marksei

• mkfs.btrfs /dev/sda make a volume.

• btrfs-convert /dev/sda

• mkfs.btrfs -f -L btrfspool /dev/sdd1 /dev/sdd2 /dev/sdd3 make a pool, -f overwrite existing filesystem.

• Adding and deleting drives from pool

  • btrfs device add /dev/sdX /mnt

  • btrfs device delete /dev/sdX /mnt