Replica Placement Strategies in Data Grid

13 years 6 months ago
Replica Placement Strategies in Data Grid
Replication is a technique used in Data Grid environments that helps to reduce access latency and network bandwidth utilization. Replication also increases data availability thereby enhancing system reliability. The research addresses the problem of replication in Data Grid environment by investigating a set of highly decentralized dynamic replica placement algorithms. Replica placement algorithms are based on heuristics that consider both network latency and user requests to select the best candidate sites to place replicas. Due to dynamic nature of Grid, the candidate site holds replicas currently may not be the best sites to fetch replicas in subsequent periods. Therefore, a replica maintenance algorithm is proposed to relocate replicas to different sites if the performance metric degrades significantly. The study of our replica placement algorithms is carried out using a model of the EU Data Grid Testbed 1 [Bell et al. Comput. Appl., 17(4), 2003] sites and their associated network ...
Rashedur M. Rahman, Ken Barker, Reda Alhajj
Added 10 Dec 2010
Updated 10 Dec 2010
Type Journal
Year 2008
Where GRID
Authors Rashedur M. Rahman, Ken Barker, Reda Alhajj
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