Broadcasting approaches for VoD services
Distributed multimedia databases
Interactive video streaming with proxy servers
Information Sciences—Informatics and Computer Science: An International Journal - Special issue: Interactive virtual environments and distance education
Interactive media server with media synchronized RAID storage system
NOSSDAV '05 Proceedings of the international workshop on Network and operating systems support for digital audio and video
Adaptive cycle management in soft real-time disk retrieval
Information Systems
Data placement and prefetching with accurate bit rate control for interactive media server
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
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We study the design of interactive video servers that store videos on disk arrays. In order to avoid the hot--spot problem in video servers it is conventional wisdom to stripe the videos over the disk array using Fine Grained Striping or Coarse Grained Striping techniques. Striping, however, increases the seek and rotational overhead, thereby reducing the throughput of the disk array.Our results indicate that the decrease in throughput is substantial when interactive delays are constrained to be less than 1 second. We show that both a high degree of interactivity and high throughput are achieved by using a narrow striping width and replicating the videos according to the users' request pattern. Specifically, we find that striping over two disks gives the highest throughput when a tight 1 second constraint on interactive delays is imposed.We also demonstrate that localized placement (i.e., no striping at all) performs nearly as well when a good estimate of the user request pattern is available.