TOKA L.

In Peer-to-Peer storage and backup applications, large amounts of data have to be transferred between nodes. In general, recipient of data transfers are not chosen randomly from the whole set of nodes in the Peer-to-Peer networks, but they are chosen according to peer selection rules imposing several criteria, such as resource contributions,...

In this work we study the benefits of a peer-assisted approach to online backup applications, in which spare bandwidth and storage space of end-hosts complement that of an online storage service. Via simulations, we analyze the interplay between two key aspects of such applications: data placement and bandwidth allocation. Our analysis focuses...

We propose a redundancy management mechanism for peer-to-peer backup applications. Since, in a backup system, data is read over the network only during restore processes caused by data loss, redundancy management targets data durability rather than attempting to make each piece of information availabile at any time. Each peer determines, in an...

We design and analyze the performance of a redundancy management mechanism for peer-to-peer backup applications. Armed with the realization that a backup system has peculiar requirements - namely, data is read over the network only during restore processes caused by data loss - redundancy management targets data durability, i.e. guaranteeing...