If you add web applications to SharePoint 3 after configuring and provisioning SharePoint 3 Services in CloudPortal Services Manager, you must reset IIS. Doing so will impact customer web sites, so let all hosted sites know about the temporary disruption to their web sites. After you reset IIS, Services Manager detects the added web applications.
If you update a quota template, you must re-provision the SharePoint instance. You can also specify individual quotas for a site, using SharePoint Central Administration. These values override the quota template settings used to create the web site. Alternatively, base the quotas for individual sites on the number of users who can access the site.
To add quota templates, you create them on any SharePoint 3 server within a server farm (the same configuration database is used for all servers in the farm) and then configure customer plans with the new quota templates.