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Sauvegarde des données dans les réseaux P2P

Rabih Tout 1
1 SOC - Service Oriented Computing
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : Nowadays, data backup is an essential solution to avoid losing data. Several backup methods and strategies exist. They use different media types. Most efficient backup methods are not free due to the cost of hardware and administration invested by suppliers. The great success of P2P networks and file sharing applications has encouraged the use of these networks in multiple applications especially with the possibility of sharing resources between network users. The limitations of traditional backup solutions in large scale networks have made P2P networks an interesting solution for backup applications. Instability in P2P networks due to peers’ high movement rate makes communication between these peers very difficult. To achieve data backup, communications between peers is essential and requires a network organization. On the other hand, the persistence of backed up data in the network remains a major challenge. Data backup is useless if backed up copies are lost. The objective of this thesis is to improve the backup organization and ensure backed up data persistence in P2P networks. We have therefore developed a planning approach that allows nodes to organize themselves in order to better communicate with each other. On the other hand, to ensure data persistency, we proposed a probabilistic approach to compute the minimum replicas number needed for a given data so that at least one copy remains in the system after a given time. Our two approaches have been implemented in a P2P backup application.
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Submitted on : Thursday, September 13, 2012 - 3:22:11 PM
Last modification on : Wednesday, July 8, 2020 - 12:43:32 PM
Long-term archiving on: : Friday, December 14, 2012 - 3:57:51 AM


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  • HAL Id : tel-00731829, version 1


Rabih Tout. Sauvegarde des données dans les réseaux P2P. Autre [cs.OH]. Université Claude Bernard - Lyon I, 2010. Français. ⟨NNT : 2010LYO10096⟩. ⟨tel-00731829⟩



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