NetApp
Storage : Qtrees : Configuring qtrees : Creating qtrees
Creating qtrees
Qtrees enable you to manage and partition your data within the volume. You can use the Create Qtree dialog box to add a new qtree to a volume on your storage system.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Storage > Qtrees.
3.
Click Create.
4.
In the Details tab, type a name for the qtree.
5.
Select the volume to which you want to add this qtree.
The Volume browse list includes only volumes that are online.
6.
If you want to disable oplocks for the qtree, clear Enable Oplocks for files and directories in this Qtree.
By default, oplocks are enabled for each qtree.
7.
If you want to change the default inherited security style, select a new one.
The default security style of the qtree is the security style of the volume that contains the qtree.
8.
If you want to restrict disk space usage, click the Quotas tab.
a.
If you want to apply quota on the qtree, click Qtree quota and specify the disk space limit.
b.
If you want to apply quota for all the users on the qtree, click User quota and specify the disk space limit.
9.
Click Create.
Related reference 
Qtrees window