Quality of service differentiated cloud storage

摘要

A system, method and computer program product for managing the quality of service differentiated cloud storage. The cloud storage (and its services) is highly distributed. An overall speed of the storage is calculated based on storage speed and a traffic speed of the connection to the particular cloud storage. Data access expenses are calculated. Then, for each of the portions of the cloud storage the associated speed and traffic costs are calculated, so the user can select a level of data access guarantee (DAG) for his particular needs. In order to maintain the desired overall speed of the data access, geo-targeting with the cloud storage system is implemented, where the same data is retrieved from different locations based on optimal data movement costs.