Disk load balancing and video ranking algorithm for efficient access in video server

Video-on-Demand (VoD) has been gaining increasing popularity in recent years. The computational problems arising in such systems are very large and require appropriate mechanisms for distributing the data among the processors. In this paper, we proposed the Architecture for Disk Load Balancing for Video on demand (VoD) systems. The Proposed design decides the architecture of a Video on demand (VoD) system depending on the number of users, growth rate of users and growth rate of media ingestion. Then we proposed the algorithm to determine the rank of the videos, the no. of copies of video, which will be placed on the multiple disks of proxy server so that the maximum hits can be made on each video. While ranking, Video is placed if space is available irrespective of availability of bandwidth on the disk. A Video is removed if and only if number of copies of the new video to be placed is greater than number of copies available in the disks and Lack of storage space. The Proposed ranking algorithm also considers the size and bandwidth of a video while calculating it´s the rank.