Providing High Data Availability in MedioGRID

High data availability is an important requirement for any data provider system. Replication is the main approach used to improve data availability, which is an inherent method for any distributed infrastructure including grids. The Globus toolkit provides specialized tools and services for data replication in grid, though it is not so simple to know how to deploy, configure and make them work efficiently together in order to obtain the desired level of data availability. Based on our experiments with these tools, we designed an architecture of a data replication management system for the MedioGrid project. Our solution automates the replication process between data storage nodes in the system. We implemented and tested a prototype of our architecture

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