Improvement of Data Grid's Performance by Combining Job Scheduling with Dynamic Replication Strategy

  • Authors:

  • Nhan Nguyen Dang;Soonwook Hwang;Sang Boem Lim

  • Affiliations:

  • Korea Institute of Science and Technology Information;Korea Institute of Science and Technology Information;Konkuk University

  • Venue:
  • GCC '07 Proceedings of the Sixth International Conference on Grid and Cooperative Computing
  • Year:
  • 2007

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Abstract

Dealing with a large amount of data makes the requirement for efficient data accesses more critical in Data Grid. Through improving performance of data replication, job execution cost is reduced. In this paper, we proposed a new strategy of replication based on organizing the data in Data Grid based on its property. Particularly, we organized the data into several data categories that it belongs to and this categorization helps improving data replication placement strategy. In addition, the paper also introduces Dataset Scheduler which helps optimize obtaining input data for job. The performance studies are conducted using simulation tool and prove the improvement of scheduling performance over current approaches.