Toward a distributed storage system leveraging the DSL infrastructure of an ISP

Internet Service Providers (ISP) furnishing cloud storage services usually rely on big data centers. These centralized architectures induce many drawbacks in terms of scalability and reliability as datacenters represent single points of failure, and in terms of data access latencies as they are not necessarily located close to the users. This paper presents the design choices about a distributed storage system that targets these issues by leveraging only high available nodes in the Digital Subscriber Line (xDSL) infrastructure of an ISP, namely a large number of home gateways, Points of Presence, and datacenters.