Clustering and Non-clustering Effects in Flash Memory Databases

Authors:
Duck-Ho Bae;Ji-Woong Chang;Sang-Wook Kim
Affiliations:
-;-;-
Venue:
DEXA '09 Proceedings of the 2009 20th International Workshop on Database and Expert Systems Application
Year:
2009

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Abstract

Flash memory has its unique characteristics: the write operation is much more costly than the read operation, and in-place updating is not allowed. In this paper, we analyze how these characteristics affect the performance of clustering and non-clustering in record management, and shows that non-clustering is more suitable in flash memory environment, which does not hold in disk environment. Also, we discuss the problems of the existing non-clustering method, and identify design factors to be considered with record management method in flash memory environment.