1 July 1998 Traffic characteristics of striped disks in video servers with visual search functions
Author Affiliations +
Abstract
A striping scheme is proposed in which a video program is partitioned into small segments that are stored by distributing them across multiple disks in a video server. In a striped-disk system, the read workload will always be evenly distributed among the component disks as long as the terminals accessing the server perform only normal playback of the video materials. However, if normal playback is combined with visual search capabilities such as jumps and skip searches, then the workload on disks could become momentarily unbalanced or skewed, which could cause interruptions in playback at terminals. In this work, we developed a queueing network model for representing multiple accesses to video materials striped across multiple disks of a video server. An approximate analysis was performed on the model to clarify the traffic characteristics of disks when visual searches are executed. One useful finding for the design of video servers is that, spreading video data over a larger number of disks through striping alleviates momentary workload skewing, which enables a server to support more multiple accesses per disk.
Hideki Sakamoto, Hideki Sakamoto, Hideharu Suzuki, Hideharu Suzuki, Kazutoshi Nishimura, Kazutoshi Nishimura, } "Traffic characteristics of striped disks in video servers with visual search functions," Journal of Electronic Imaging 7(3), (1 July 1998). https://doi.org/10.1117/1.482655 . Submission:
JOURNAL ARTICLE
7 PAGES


SHARE
RELATED CONTENT

Error-resilient video compression
Proceedings of SPIE (November 21 1999)
Real-time MPEG-1 software decoding on HP workstations
Proceedings of SPIE (April 16 1995)
Visual masking at video scene cuts
Proceedings of SPIE (April 19 1995)
Robust wireless video transmission using MPML
Proceedings of SPIE (July 14 2004)
MPEG-4 for DTV
Proceedings of SPIE (December 20 1998)

Back to Top