An optimal multimedia object allocation solution in multi-powermode storage systems

摘要

Given a set of multimedia objects R = {o_1, o_2,..., o_k} each of which has a set of multiple versions o_(i.v) = {A_(i.0), A_(i.1), ...,A_(i.m)}, i = 1,2, ...,k, there is a problem of distributing these objects in a server system so that user requests for accessing specified multimedia objects can be fulfilled with the minimum energy consumption and without significant degrading of the system performance. This paper considers the allocation problem of multimedia objects in multi-powermode storage systems, where the objects are distributed among multi-powermode storages based on the access pattern to the objects. We design an underlying infrastructure of storage system and propose a dynamic multimedia object allocation policy based on the designed infrastructure, which integrate and prove the optimality of the proposed policy.