To limit the storage of a site collection you can create and apply Quota Templates.
Some important things to know about quotas:
- Quotas can only be applied to Site Collections, not to single sites or entire applications
- Quota space includes library files, list contents (announcements, etc), master pages, etc (ie. Everything)
- Files in the Recycle Bin are part of the quota calculation
- The warning e-mail is only sent once!
- Once the quota has been reached, no more uploads are permitted
- Once the quota has been reached, many site edits are prohibited! For example adding an announcement or even modifying an existing view displays this: "Your changes could not be saved because this SharePoint Web site has exceeded the storage quota limit."
- When a site is limited by a quota there is a new option in Site Actions -> Site Settings: "Storage space allocation". Here the site admin can see where quota is being used.
- The last item uploaded that exceeded the quota will be uploaded successfully, even if it takes the site way over quota.
To create quotas:
Go to Central Administration and drill down to Application Management and Quota Templates. Create as many quota templates as needed.
When a user exceeds their quota
During a Multiple Upload they may see:
During a single Upload or other edit such as adding an announcement they will see:
To track quotas
Site administrators can go to Site Actions -> Site Settings and click "Storage space allocation" to review space usage. Here they can display lists of libraries, documents, lists and Recycle Bin contents. These lists are by default sorted on size, descending. They can be resorted on Date Modified or Size.