Issues of flash-aware buffer management for database systems

Authors:
Yi Ou;Theo Härder
Affiliations:
University of Kaiserslautern, Germany;University of Kaiserslautern, Germany
Venue:
BNCOD'10 Proceedings of the 27th British national conference on Data Security and Security Data
Year:
2010

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Abstract

Classical buffer replacement policies, e.g., LRU, are suboptimal for database systems having flash disks for persistence, because they are not aware of the distinguished characteristics of those storage devices. We discuss the basic principles of flash-aware algorithms and issues related to transaction management. An efficient flash-aware algorithm, CFDC, is presented and compared to several previous proposals.