D-Link DNS-33 User Manual page 27

Section 3 - Configuration
By default, all users and groups are displayed on the Quota Settings page. Users and groups are automatically listed
on this page, and cannot be deleted. The default quota setting is "Unlimited".
To add a quota:
Click the notepad icon of the user
you want to add a quota to.
Set a quota amount (MB) for the
user and click Apply.
D-Link DNS-33 User Manual
Configuring Quotas