Efficient Incorporation of Tertiary Storage in a Multimedia DBMS


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 6, No. 7, pp. 1724-1737, Jul. 1999
10.3745/KIPSTE.1999.6.7.1724,   PDF Download:

Abstract

Multimedia data service applications have to store and manipulate LOBs(unstructured large objects) composing multimedia data. As such, the tertiary storage such as an optical disk jukebox and a tape library that consist of a number of platters (the disks in case of an optical disk jukebox and the cartridge tapes in case of a tape library) have been considered essential for the storage system of a DBMS in order to efficiently support storage and management of vary large volume of data. Since the latency with tertiary storage is too long, the schemes for efficient retrieval of LOBs out of tertiary storage need to be investigated. In this paper, we investigated the tertiary I/O scheduling for efficient retrieving of LOBs when tertiary storage is utilized as the main storage for the LOBs. Considering the performance characteristics of tertiary storage and the characteristics of the LOBs, we proposed various I/O scheduling heuristic algorithms that reduce latency in query processing with LOB retrieval from tertiary storage, and evaluated their performance through a detailed simulation.


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Cite this article
[IEEE Style]
M. C. Ho and K. H. Chul, "Efficient Incorporation of Tertiary Storage in a Multimedia DBMS," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 6, no. 7, pp. 1724-1737, 1999. DOI: 10.3745/KIPSTE.1999.6.7.1724.

[ACM Style]
Moon Chan Ho and Kang Hyun Chul. 1999. Efficient Incorporation of Tertiary Storage in a Multimedia DBMS. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 6, 7, (1999), 1724-1737. DOI: 10.3745/KIPSTE.1999.6.7.1724.