Title :
Hierarchical storage management in a distributed VOD system
Author :
Brubeck, David W. ; Rowe, Lawrence A.
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
The article describes the storage management algorithms in the Berkeley Video-on-Demand System, a hierarchical storage management system designed to support transparent access to thousands of hours of video material. Storage management algorithms handle continuous media objects stored on video servers within a hierarchical distributed video-on-demand system. Media objects stored permanently on tertiary storage devices are moved to video servers when needed. Algorithms manage the distributed cache in the video servers and select a video server on which to place a requested object. The object-placement algorithm uses server load, network load, and service-wait times to optimize system performance
Keywords :
cache storage; client-server systems; distributed databases; file servers; interactive television; interactive video; multimedia computing; storage management; Berkeley Video-on-Demand System; continuous media objects; distributed cache management; hierarchical distributed video-on-demand system; hierarchical storage management; network load; object-placement algorithm; optimize system performance; requested object; server load; service wait times; storage management algorithms; tertiary storage devices; transparent access; video material; video servers; Databases; Educational institutions; File servers; Magnetic materials; Material storage; Motion pictures; Network servers; Optical devices; System performance; TV;
Journal_Title :
MultiMedia, IEEE
