A new feature in Volume Manager 5.0 is the support of LUNs greater than 2TB. To use a LUN that is greater than 2TB, the LUN must be created with a 512 byte sector size and a GUID Partition Table (GPT) partition needs to be created on the LUN using the parted utility.

NOTE: The fdisk utility is not capable of making partitions greater than 2TB.

With the LUN created using the above parameters, Volume Manager will initialize the it to the full capacity. It is important to note that Volume Manager does not support the Cross-platform Data Sharing (CDS) compatibility format, the default format for initializing LUNs with Volume Manager 4.0 and above, for LUNs greater than 2TB. Volume Manager only supports LUNs greater than 2TB using the Simple or Sliced format.

For more information about the CDS compatibility format, please refer to the Related Documents section below.

Below is an example of how to initialize a LUN in the Simple and Sliced format:

For more information about changing the default format when initializing disks, and changing the default of type of disk group to non-CDS in Volume Manager, please refer to the Related Documents section below.