4th USENIX Conference on File and Storage TechnologiesAbstract
Pp. 239252 of the Proceedings
Database-Aware Semantically-Smart Storage
Muthian Sivathanu, Google Inc.; Lakshmi N. Bairavasundaram,
Andrea C. Arpaci-Dusseau, and Remzi H. Arpaci-Dusseau, University of Wisconsin, Madison
Recent research has demonstrated the potential benefits
of building storage arrays that understand the file systems
above them. Such "semantically-smart" disk systems use
knowledge of file system structures and operations to improve
performance, availability, and even security in ways
that are precluded in a traditional storage system architecture.
In this paper, we study the applicability of semantically
smart disk technology underneath database management
systems. For three case studies, we analyze the differences
when building database-aware storage. We find
that semantically-smart disk systems can be successfully
applied underneath a database, but that new techniques,
such as log snooping and explicit access statistics, are
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