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