How can I create a disk partition on a disk that is greater than 2TB in size on Red Hat Enterprise Linux?

Solution Verified - Updated -


  • I'm trying to create a partition on my 5.4TB disk with fdisk and the partitions are not the correct size.
  • Failed to see large file system, I made an RAID5 file system (DELL PERC-H730 controller) using 5x1.2TB disks and #fdisk -l /dev/sdc shows that I do have 4.7GB raw device:
Disk /dev/sdc: 4798.6 GB, 4798552211456 bytes
90 heads, 3 sectors/track, 34711749 cylinders
Units = cylinders of 270 * 512 = 138240 bytes
  • Upon making new partition using fdisk, followed by filesystem(mkfs) and mounting the new file system only show 2.0TB???
/dev/sdc1                         2.0T  199M  1.9T   1% /data
  • Cannot understand what I did wrong? on the making of partition.


  • Red Hat Enterprise Linux including :

    • Red Hat Enterprise Linux 3
    • Red Hat Enterprise Linux 4
    • Red Hat Enterprise Linux 5
    • Red Hat Enterprise Linux 6
    • Red Hat Enterprise Linux 7
  • Disk or LUN exceeding 2TB in size

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