System and method for drive-side guarantee of quality of service and for extending the lifetime of storage devices

A method for guaranteeing a quality of service in a storage device, the method comprising:

• monitoring a performance parameter for each of a plurality of read-write mechanisms of the storage device using a quality monitoring and book-keeping unit;
• calculating a quality indicator that is representative of the monitored performance parameter for each of the plurality of read-write mechanisms;
• associating each calculated quality indicator to its read-write mechanism;
• and
• scheduling one or more of the plurality of read-write mechanisms for use using a scheduling unit according to the assigned quality indicator.

A storage device comprising:

• a storage medium divided into a plurality of partitions;
• one or more read-write mechanisms associated with the plurality of partitions and adapted to read and write data to and from the plurality of partitions;
• and
• a quality monitoring and book-keeping unit adapted to monitor an operational quality of each partition of the plurality of partitions and to associate each partition with its monitored operational quality;
• and
• a scheduling unit adapted to schedule use of a partition of the plurality of partitions according to its associated operational quality.