parted /dev/sdb

(parted) mklabel gpt

Warning: The existing disk label on /dev/sdb will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? yes
(parted)

(parted) unit TB

(parted) mkpart primary 0.00TB 3.00TB

(parted) print

(parted) quit

#mkfs.ext4 /dev/sdb1