Disk quota management
Alternatively referred to as a quota, disk quota management are permissions given by administrators that set limits on the user, workgroups, or other groups of storage space. By setting a quota, this helps prevents a server or share from becoming full of data, but allows users to still be able to save files on a server or share.
Most users who send and receive e-mail or run their own webpage should be familiar with quotas. For example, often an e-mail server will be setup so a user can only receive so many e-mails or only receive e-mails with small attachments. If they exceed their quota, often the e-mail server will reject any new messages or delete older messages. In addition, if the file attachment is too big to fit into the allocated space, the e-mail will be rejected or deleted.
Also see: Network definitions