I wanted to create a full-disk partition, with optimal alignment, on a 4TB disk under CentOS 6.4 and use it as an LVM PV.

fdisk doesn’t work on disks larger than 2TB so I used parted:

parted -a optimal /dev/sda
(parted) mklabel
Warning: The existing disk label on /dev/sda will be destroyed and all data on this disk will be lost. Do you want to continue?
Yes/No? Yes
(parted) mkpart primary ext2 0% 100%
(parted) set 1 lvm on