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Lookup NU author(s): Emeritus Professor Isi Mitrani
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A system employing data replication is structured as a two-level logical hierarchy. Replicas at level 0 maintain strong consistency, while those at level 1 may contain out-of-date information. Accesses which change the data have to be executed at level 0, and require an appropriate quorum of replicas. Read requests may be executed either at level 0 or at level 1, depending on whether the most recent information is required or not. A read quorum is necessary in the former case, but not in the latter. The performance and reliability characteristics of the system are evaluated by means of two models-one with reliable servers and one with random breakdowns and repairs.
Author(s): Misra M, Mitrani I
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 2nd IEEE International Performance and Dependability Symposium (IPDS)
Year of Conference: 1996
Publisher: IEEE Computer Society Press
Library holdings: Search Newcastle University Library for this item