Dynamic batching policies for an on-demand video server
Multimedia Systems
Effective Memory Use in a Media Server
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
MediSyn: a synthetic streaming media service workload generator
NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
Storage and retrieval of compressed video
Storage and retrieval of compressed video
Energy conservation techniques for disk array-based servers
Proceedings of the 18th annual international conference on Supercomputing
Power-Aware Storage Cache Management
IEEE Transactions on Computers
Hibernator: helping disk arrays sleep through the winter
Proceedings of the twentieth ACM symposium on Operating systems principles
Proceedings of the twentieth ACM symposium on Operating systems principles
Power management of enterprise storage systems
Power management of enterprise storage systems
Power reduction of multiple disks using dynamic cache resizing and speed control
Proceedings of the 2006 international symposium on Low power electronics and design
Exploiting In-Memory and On-Disk Redundancy to Conserve Energy in Storage Systems
IEEE Transactions on Computers
SEA: A Striping-Based Energy-Aware Strategy for Data Placement in RAID-Structured Storage Systems
IEEE Transactions on Computers
EUC'06 Proceedings of the 2006 international conference on Embedded and Ubiquitous Computing
Energy-aware video storage and retrieval in server environments
IGCC '11 Proceedings of the 2011 International Green Computing Conference and Workshops
Highly available and heterogeneous continuous media storage systems
IEEE Transactions on Multimedia
Saving disk energy in video servers by combining caching and prefetching
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) - Special issue of best papers of ACM MMSys 2013 and ACM NOSSDAV 2013
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As the storage requirements of a video server increase, disks of different types are often added. This makes it essential to manage the energy requirements of heterogeneous disk arrays. We examine how seek operations affect disk energy consumption, and then analyze the relationship between the amount of prefetched data and the number of seeks, and the effect of the size of the prefetching buffer on energy consumption. Based on this, we propose a new data prefetching scheme in which the amount of data prefetched for each video stream is dynamically adjusted to allow for the bit-rates of streams and the power characteristics of different disks, with the aim of minimizing overall disk energy consumption. Simulations show that our scheme can reduce disk energy by 26%, compared to a server in which prefetching is not used.