Efficient management of fragmented replica in data grids

Chao Chin Wu, Lien Fu Lai, Jia Xian Lai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Rather than replicating a file completely, Chang et al. proposed a fragmented replication technique to cope with the problem that only partial content of the replica are required in a local application. Furthermore, they also proposed two server selection algorithms for replica retrieval. However, their algorithms do not always find an optimal solution. To address the problem, in this paper, the authors propose a replica selection algorithm to improve the fragmented replica retrieval efficiency in this paper. It is a heuristic considering not only the transmission time but also the number of available servers for each block. Simulation results show that the proposed algorithm can improve the retrieval efficiency up to 12%.

Original languageEnglish
Pages (from-to)63-70
Number of pages8
JournalInternational Journal of Grid and High Performance Computing
Issue number2
Publication statusPublished - 2012 Apr

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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