Limit the host storage

Hello,
I’ve been trying to limit one of my hostings, but I don’t know how to do it.
I just can see the storage, but I don’t find anything about limiting it on dreamhost control panel.

Does anybody knows how to do it?

You can’t. The Unlimited plans have no quotas. Your best bet is just to monitor usage and notify users when they go past a certain amount.

-Scott