NetApp
Storage > LUNs : Managing LUNs : Cloning LUNs

Cloning LUNs
LUN clones enable you to create multiple readable and writable copies of a LUN. You might want to create a temporary copy of a LUN for testing or to make a copy of your data available to additional users, without giving them access to the production data.
Before you begin 
When space reservation is not enabled for a LUN, the volume that contains the LUN must have enough space to accommodate changes to the clone.
Note: A space-reserved LUN clone requires as much space as the space-reserved parent LUN.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Storage > LUNs.
3.
Select the LUN you want to clone and click Clone.
4.
If you want to change the default name, specify a new one.
5.
Click Clone.