This directory contains CSRG Technical Report #401 

Resource Utilization Balancing in Disk Storage of VBR Streams

Stergios V. Anastasiadis, Kenneth C. Sevcik and Michael Stumm

                      Abstract

Economic viability of stored video streaming services is critically
dependent on the existence of efficient storage servers that amortize
their operating cost over large numbers of concurrent
streams. Simplifications in device modeling and resource reservation
schemes, or restrictions in the disk transfer scheduling and memory
buffer allocation policies can create resource utilization imbalance
and reduce considerably the amount of usefully consumed resources. We
propose using detailed and accurate resource reservation for each
stream, and minimize the disk time variability in a way that
guarantees server memory utilization bounded above by the
corresponding disk time utilization. We compare, in a consistent
experimentation environment, this policy with previously proposed
video streaming methods and demonstrate significant increase in the
number of successfully supported streams.



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If you have any problems, please contact stergios@cs.toronto.edu.