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Minimum and maximum array LUN sizes supported by Data ONTAP

The array LUNs presented to Data ONTAP must fall within the minimum and maximum size that Data ONTAP requires for data LUNs, according to the way that Data ONTAP calculates size. Data ONTAP issues an error message identifying an array LUN that does not adhere to the minimum or maximum array LUN size requirements.

The Data ONTAP minimum and maximum array LUN sizes are calculated according to the way that Data ONTAP defines units of measure. The Data ONTAP definition of a GB and TB is as follows:

One... Equals...
GB 1000 x 1024 x 1024 bytes (1000 MB)
TB 1000 x 1000 x 1024 x 1024 bytes (1000 GB)

Different vendors use different formulas for calculating units of measurement. You must use your vendor's units of measure to calculate the minimum and maximum array LUN sizes that are equivalent to the minimum and maximum array LUN sizes that Data ONTAP supports.

The maximum LUN size that Data ONTAP supports differs according to Data ONTAP release. For information about the minimum and maximum array LUN sizes, see the Hardware Universe. The Hardware Universe contains the maximum array LUN size, calculated according the mathematical formulas used by most vendors. The maximum array LUN size shown is the size that will work for all storage array vendors.

Note: The minimum array LUN size for a data (storage) LUN is different from the minimum array LUN size for the root volume. See the Hardware Universe for more information.