Data Centers

Dynamic Replica Placement and Location Strategies for Data Grid

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Executive Summary

In data grid, replication data on multiple nodes can improve availability and response time. Yet determining when and where to replicate data in order to meet performance goals with many users and files, dynamic network characteristic, and changing user behavior is difficult. Also, it is a challenging problem to find the best-fit replica efficiently according to location and performance of physical storage systems at which the replicas dwell. To address these problems, the authors combine tree topology of grid architecture with multi-ring topology of peer-to-peer architecture to model replica network topology.

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