effective as a way to exchange messages in a P2P fashion. P-Grid [1] is the systems, which overcomes Several aspects of today's Grids are still based on the limitations of client-server paradigm. This system centralized or hierarchical services. However, as Grid is focusing on scalability and data retrieval issues by sizes increase from tens to thousands of hosts, fault applying sophisticated load-balancing and faulttolerance is becoming a key issue. In this paper, we tolerance algorithms to provide continuous and reliable propose a cost-optimized reliability using redundancy access. Nevertheless some researchers have pointed scheme in redundant group peers based P2P Grid. out the differences between P2P and Grid, Grid Proposed finding optimum redundancy minimizes computing and P2P requirements overlap in many system cost and guarantees reliability which satisfies regards. In the article [2], authors emphasized that Grid requirements of application under the dynamic benefit from the more flexible connectivity models in behaviors in P2P Grid environments.P2P. Authors [6] mentioned about super peer networks, and it assumed the degree of redundancy of super
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