A new strategy for increasing the availability of data in multiprocessor, shared-nothing database machines is presented. This technique, termed chained declustering, is demonstrated to provide superior performance in the event of failures while maintaining a very high degree of data availability. Furthermore, unlike most earlier replication strategies, the implementation of chained declustering requires no special hardware and only minimal modifications to existing software.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Hsiao et al. (2002) studied this question.
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