25 March 1996 Block allocation in video servers for availability and throughput
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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).
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William H. Tetzlaff, Robert Flynn, "Block allocation in video servers for availability and throughput", Proc. SPIE 2667, Multimedia Computing and Networking 1996, (25 March 1996); doi: 10.1117/12.235884; https://doi.org/10.1117/12.235884
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