Replica Selection in the Globus Data Grid

The Globus Data Grid architecture provides a scalable infrastructure for the management of storage resources and data that are distributed across Grid environments. These services are designed to support a variety of scientific applications, ranging from high-energy physics to computational genomics, that require access to large amounts of data (terabytes or even petabytes) with varied quality of service requirements. By layering on a set of core services, such as data transport, security, and replica cataloging, one can construct various higher-level services. In this paper, we discuss the design and implementation of a high-level replica selection service that uses information regarding replica location and user preferences to guide selection from among storage replica alternatives. We first present a basic replica selection service design, then show how dynamic information collected using Globus information service capabilities concerning storage system properties can help improve ...

• Type: Conference
• Year: 2001
• Where: CCGRID
• Authors: Sudharshan Vazhkudai, Steven Tuecke, Ian T. Foster
• Keywords: CCGRID 2001, Distributed And Parallel Computing, Replica Selection Service, Storage Replica Alternatives, Storage Resource