-- removendo o LVM

vgdisplay
lvdisplay

lvremove --verbose /dev/grupoadv/volume1
vgremove grupoadv

-- removendo o Array

mdadm  --detail --scan


sudo fdisk -l
sudo mdadm --detail /dev/md0
sudo mdadm --stop /dev/md0

sudo mdadm --zero-superblock /dev/sda (or hda)
sudo mdadm --zero-superblock /dev/sdX...

-- formatar os discos com cfdisk

lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT


-- criando o array
https://www.digitalocean.com/community/tutorials/how-to-create-raid-arrays-with-mdadm-on-ubuntu-16-04#creating-a-complex-raid-10-array

 mdadm --create --verbose /dev/md0 --level=10 --raid-devices=4 /dev/sdb /dev/sdc /dev/sdd

sudo mkfs.ext4 -F /dev/md0