Although the characteristics of a hard disk are more suitable for the interactive environment of a VOD service, using hard disks as permanent storage devices can suffer from the relatively high cost and frequent failure rate of a hard disk. Several VOD servers with tertiary storage devices have been proposed but the response time for a user's request in most approaches is too long to he used in the interactive environment of a VOD service. This paper proposes another structure of a VOD server that utilizes the jukeboxes of optical disks for a video database. Since the jukeboxes of optical disks are more reliable and inexpensive, it is useful for storing the huge volume of video streams. As a result, it can he a part of a cost-effective server configuration for large-scale VOD services. Several allocation methods for video streams in the jukeboxes are devised and compared in order to improve the performance of the proposed structure.
All Science Journal Classification (ASJC) codes
- Media Technology
- Electrical and Electronic Engineering