Basically, fdisk cannot create partition more than 2 TB. The other way to create the partition is using parted command.
Step one, locate the disk using fdisk
fdisk -lLet say we got /dev/sdc
parted /dev/sdcOn parted
(parted) mklabel gpt
(parted) mkpart primary 0GB 3TB
(parted) exitTo verify
fdisk /dev/sdcFormat disk to ext4
mkfs.ext4 /dev/sdc1To mount the formatted disk
mount /dev/sdc1 /data1