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Highly available services can be implemented by means of so-called quorum protocols. Unfortunately, applying quorum protocols in real-world physical networks turns out to be difficult since efficient quorum protocols often depend on a particular graph structure imposed on the replicas managed by it. In this paper, we show that the cost and availability predictions of the operations provided by quorum...
In recent years, data replication have received attention in terms of tolerance for large-scale disasters. Also, file versioning features, by which more than one version of a file can be maintained, have been commercially available in some storage services. For providing file versioning with limited storage resources, it is essential to divide the resources among versions in accordance with the varied...
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