caa a22 4500 47713288X CHVBK 20180405111708.0 cr unu---uuuuu 170330e19970601xx s 000 0 eng 10.1007/s005300050060 doi (NATIONALLICENCE)springer-10.1007/s005300050060 Disk placement for arbitrary-rate playback in an interactive video server [Elektronische Daten] [Taeck-Geun Kwon, Yanghee Choi, Sukho Lee] Abstract.: Multimedia data, especially continuous media including video and audio objects, represent a rich and natural stimulus for humans, but require large amount of storage capacity and real-time processing. In this paper, we describe how to organize video data efficiently on multiple disks in order to support arbitrary-rate playback requested by different users independently. Our approach is to segment and decluster video objects and to place the segments in multiple disks using a restricted round-robin scheme, called prime round-robin (PRR). Its placement scheme provides uniform load balance of disks for arbitrary retrieval rate as well as normal playback, since it eliminates hot spots. Moreover, it does not require any additional disk bandwidth to support VCR-like operations such as fast-forward and rewind. We have studied the various effects of placement and retrieval schemes in a storage server by simulation. The results show that PRR offers even disk accesses, and the failure in reading segment by deadline occurs only at the beginning of new operations. In addition, the number of users admitted is not decreased, regardless of arbitrary-rate playback requests. Springer-Verlag Berlin Heidelberg, 1997 Key words: Video server - Interactive video-on-demand - Multimedia storage system - Disk placement nationallicence Kwon Taeck-Geun R&D Center, LG Information & Communications, Ltd., 533 Hogye-dong, Anyang 430-080, Korea, KR aut Choi Yanghee Department of Computer Engineering, Seoul National University, San 56-1 Shinrim-dong, Seoul 151-742, Korea, KR aut Lee Sukho Department of Computer Engineering, Seoul National University, San 56-1 Shinrim-dong, Seoul 151-742, Korea, KR aut https://doi.org/10.1007/s005300050060 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005300050060 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kwon Taeck-Geun R&D Center, LG Information & Communications, Ltd., 533 Hogye-dong, Anyang 430-080, Korea, KR aut NATIONALLICENCE 700 1- Choi Yanghee Department of Computer Engineering, Seoul National University, San 56-1 Shinrim-dong, Seoul 151-742, Korea, KR aut NATIONALLICENCE 700 1- Lee Sukho Department of Computer Engineering, Seoul National University, San 56-1 Shinrim-dong, Seoul 151-742, Korea, KR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer