Block allocation in video servers for availability and throughput

William H. Tetzlaff; Robert Flynn

doi:10.1117/12.235884

25 March 1996 Block allocation in video servers for availability and throughput

William H. Tetzlaff, Robert Flynn

Proceedings Volume 2667, Multimedia Computing and Networking 1996; (1996) https://doi.org/10.1117/12.235884
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States

Abstract

Video servers aimed at the home market must deliver very large files at a low cost. The video files must be shared and reused to contain costs. The nature of videos, however, demand a low jitter (late block delivery) rate. Normal systems tolerate disk queues and deliver, typically, smaller objects in a less predictable manner. This paper explores in a multi disk, stripped, environment whether block placement, interdisk permuation, replication and compression impacts the rate of jitter in a multiuser setting with different assumptions as to the pattern of use. Correspondingly, the number of supportable users for a given level of quality (jitters per hour per user) is addressed. Block allocation is the term used to describe the placement of video blocks on selected disk(s).

Citation Download Citation

William H. Tetzlaff and Robert Flynn "Block allocation in video servers for availability and throughput", Proc. SPIE 2667, Multimedia Computing and Networking 1996, (25 March 1996); https://doi.org/10.1117/12.235884

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