P2P storage systems modeling, analysis and evaluation - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Rapport (Rapport De Recherche) Année : 2007

P2P storage systems modeling, analysis and evaluation

Résumé

This Report characterizes the performance of peer-to-peer storage systems in terms of the delivered data lifetime and data availability. Two schemes for recovering lost data are modeled and analyzed: the first is centralized and relies on a server that recovers multiple losses at once, whereas the second is distributed and recovers one loss at a time. For each scheme, we propose a basic Markovian model where the availability of peers is exponentially distributed, and a more elaborate model where the latter is hyper-exponentially distributed. Our models equally apply to many distributed environments as shown through numerical computations. These allow to assess the impact of each system parameter on the performance. In particular, we provide guidelines on how to tune the system parameters in order to provide desired lifetime and/or availability of data. One important outcome of our analysis is that a simplifying exponential assumption on the peers availability leads to incorrect evaluation of the performance achieved. Thereby, the more elaborate model is necessary to capture the true behavior of peer-to-peer storage systems
Fichier principal
Vignette du fichier
RR-p2p_PEVA.pdf (447.35 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

inria-00194608 , version 1 (06-12-2007)
inria-00194608 , version 2 (18-12-2007)

Identifiants

  • HAL Id : inria-00194608 , version 1

Citer

Abdulhalim Dandoush, Sara Alouf, Philippe Nain. P2P storage systems modeling, analysis and evaluation. [Research Report] 2007, pp.28. ⟨inria-00194608v1⟩
170 Consultations
164 Téléchargements

Partager

Gmail Facebook X LinkedIn More