NetApp
Storage : Quotas : Configuring quotas : Creating quotas

Creating quotas
Quotas provide a way to restrict or track the disk space and number of files used by a user, group, or qtree. You can use the Add Quota wizard to create a new quota and apply it to a specific volume or qtree.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Storage > Quotas.
3.
In the User Defined Quotas tab, click Create.
4.
Type or select information as requested by the wizard.
5.
Confirm the details and click Finish to complete the wizard.