Format 2 TB+ disks using parted (GPT)

script.sh

# To create a partition start GNU parted as follows:
parted /dev/sdb

# Create a new GPT disklabel i.e. partition table:
mklabel gpt
yes

# Next, set the default unit to TB, enter:
unit TB

# To create a 3TB partition size for example, enter:
mkpart primary 0.00TB 3.00TB

# To print the current partitions, enter:
print

# Sample outputs:

# Model: ATA ST33000651AS (scsi)
# Disk /dev/sdb: 3.00TB
# Sector size (logical/physical): 512B/512B
# Partition Table: gpt
# Number  Start   End     Size    File system  Name     Flags
#  1      0.00TB  3.00TB  3.00TB  ext4         primary

# Quit and save the changes, enter:
quit

# Use the mkfs.ext4 command to format the file system, enter:
mkfs.ext4 /dev/sdb1

# Don't forget to update /etc/fstab or mount the disk

# Source: http://www.cyberciti.biz/tips/fdisk-unable-to-create-partition-greater-2tb.html