- verify machine has extra disks. e.g.
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 893.8G 0 disk
__sda1 8:1 0 893.8G 0 part /
nvme0n1 259:0 0 1.5T 0 disk
nvme3n1 259:1 0 1.5T 0 disk
nvme1n1 259:2 0 1.5T 0 disk
nvme5n1 259:3 0 1.5T 0 disk