Abstract: A method of data storage management. A server receives a data upload request from a remote client, the upload request including information identifying the data to be uploaded. The server determines that a duplicate of the data is stored at a data storage device. The server receives proof of possession information derived by the client from the data using additional information known to the server. On the basis of the received information, the server determines whether to allow the client or a user associated with the client to subsequently access the duplicate data stored at the data storage device.

Abstract: In accordance with an example embodiment of the present invention, there is provided an apparatus, including a receiver for receiving, from a client device, a data upload request relating to a data management application, wherein a data communications connection having a first data upload speed is utilized between the client device and a data management server; a processor configured to determine whether the client device is allowed to use a second data upload speed on the basis of the received data upload request, wherein the second data upload speed is faster than the first data upload speed; and a processor configured to establish the second data upload speed for the client device, if the client device is allowed to use the second data upload speed.

Abstract: A method of data storage management. A server receives a data upload request from a remote client, the upload request including information identifying the data to be uploaded. The server determines that a duplicate of the data is stored at a data storage device. The server receives proof of possession information derived by the client from the data using additional information known to the server. On the basis of the received information, the server determines whether to allow the client or a user associated with the client to subsequently access the duplicate data stored at the data storage device.