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A framework for the storage and retrieval of continuous media data

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3 Author(s)
Ozden, B. ; AT&T Bell Labs., Murray Hill, NJ, USA ; Rastogi, R. ; Silberschatz, A.

Continuous media applications require a guaranteed transfer rate of data, which conventional storage servers are not designed to provide. The aim of this paper is to provide a general framework for the design of storage servers that deal with both continuous and non-continuous media data. We present several algorithms for the concurrent transfer of continuous media data for multiple requests with different rates. The algorithms provide high throughout by reducing the seek latency time and by eliminating relational latency incurred when accessing data on disks. Each of these algorithms is accompanied by an admission control scheme to restrict the number of concurrent requests being serviced at any given time. We also augment these algorithms to support conventional data accesses without violating the rate guarantees of continuous media data requests. Finally, we extend our algorithms to deal with the newer disks, where transfer rates vary from one track to another. The algorithms presented in this paper are used in Fellini-a storage server for continuous and conventional data being implemented at AT&T Bell Laboratories

Published in:

Multimedia Computing and Systems, 1995., Proceedings of the International Conference on

Date of Conference:

15-18 May 1995