pvcreate /dev/sdx
vgextend name_of_extend  /dev/sdx
lvextend -l +100%FREE /dev/mapper/owncloud2_data-owncloud2_data_1 


echo '/dev/mapper/data-synaman--data  /mnt/data  ext4  defaults 0 0' | sudo  tee -a /etc/fstab
