Accelerate Data Sharing in a Wide-Area Networked File Storage System

Up to now, more and more people use Internet storage services as a new way of sharing. File sharing by a distributed storage system is quite different from a specific sharing application like BitTorrent. And as large file sharing becomes popular, the data transmission rate takes the place of the response delay to be the major factor influencing user experience. This paper introduces strategies used to accelerate file sharing with low bandwidth consumptions in a deployed wide-area networked storage system Granary. We use a popularity and locality sensitive replication strategy to put files closer to users that request it frequently. The Hybrid server selection scheme and the Remote Boosting replication mechanism are also presented. Experimental results show these methods offer better sharing speed and cost less network bandwidth than conventional caching schemes.