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LAG: Achieving transparent access to legacy data by leveraging grid environment

By Yuhui Deng and Frank Zhigang Wang


The world today is experiencing an explosive growth of data generated by information digitization. Due to the unprecedented advance in software and hardware, large amounts of data gradually becomes legacy data and inaccessible. This is building a digital black hole, and it is becoming a big challenge to access, process, and preserve the legacy data. Grid provides flexible, secure, and coordinated resource sharing among dynamic collections of individuals, institutions, and resources. It allows users and applications to access the aggregated resources in a transparent manner. This paper proposes a Legacy Application Grid (LAG) architecture. This architecture deploys diverse legacy applications in a grid environment and provides a transparent access to the remote LAG users who want to access the legacy data. In contrast to the existing methods which attempt to tackle legacy data and legacy applications, we wrap a display protocol into grid services. The service provider, who wants to deploy any legacy applications, just needs to deploy the protocol based grid service, describe and pass the parameters of those legacy applications to the service. Compared with the traditional approaches, the method proposed in this paper is very cost-effective because it avoids converting legacy data from one format to another format or upgrading legacy applications one by one. An implemented prototype validates that the LAG architecture trades acceptable performance degradation for a transparent and remote access to legacy data. (C) 2010 Elsevier B.V. All rights reserved

Topics: Legacy data Grid Architecture Grid service Web service information-systems management services
Publisher: Elsevier Science B.V., Amsterdam.
Year: 2011
DOI identifier: 10.1016/j.future.2010.07.004
OAI identifier:
Provided by: Cranfield CERES

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