US Patent 10380098 Fine-grained shared multi-tenant de-duplication system

In one example, a method for managing data includes detecting a data stream that is specific to a first user and that includes one or more user objects each having one or more data chunks. Next, the data associated with the first user is salted by associating a user-specific salt with the data chunks of the one or more user objects to form user-specific combinations of the form ((user-specific salt)+(user data chunk)). Finally, an amount of storage capacity consumed by the one or more user objects is determined.