Maintaining data reliability without availability in P2P storage systems
Lluís Pàmies-Juàrez, Pedro Garcı́a-López · 2010
Peer-to-peer (P2P) storage is a promising technology to provide users with cheap and online persistence. However, due the instability of these infrastructures, P2P storage systems must introduce redundancy in order to guarantee a reliable storage service. Besides, they need data repair algorithms to maintain this redundancy in front of permanent node departures. To ensure that such repairs can always be run, existing P2P storage systems aim to maintain 100% data availability. Unfortunately, this solution seems to overkill in preventing data loses, introducing network and data overheads.