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Many modern storage systems used for large-scale scientific systems are multiple use, independently administrated clusters or grids. A common technique to gain storage reliability over a long period of time is the creation of data replicas on multiple servers, but in the presence of server failures, ongoing corrective action must be taken to prevent the(More)
The goal of scientific grid computing is to enable researchers to attack problems that were previously impossible. Cooperative storage systems have been assembled to provide users with access to surprisingly large amounts of useful space, but locating, accessing, and efficiently employing such distributed data sets in scientific simulation or analysis is(More)
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