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Wednesday, March 25, 2009

Semantically-Smart Disk Systems

As opposed to a traditional “smart” disk and SDS has detailed knowledge of how the file system above is using the disk system, including information about the on-disk data structures of the file system. An SDS exploits this knowledge to transparently improve performance or enhance functionality beneath a standard block read/write interface. EOF can discover file-system structure for certain types of file systems, and then show how an SDS can exploit this knowledge on-line to understand file-system behavior. Furthermore, it is studied how the issues surrounding SDS construction by designing and implementing a number of prototypes as case studies can be handled. It shows that SDS is helpful to implement track aligned extent, secure deletion and journaling.

Muthian Sivathanu , Vijayan Prabhakaran , Florentina I. Popovici , Timothy E. Denehy , Andrea C. Arpaci-Dusseau , Remzi H. Arpaci-Dusseau, Semantically-Smart Disk Systems, Proceedings of the 2nd USENIX Conference on File and Storage Technologies, March 31-31, 2003, San Francisco, CA

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