Placement of Multi-rate Smoothed VBR Video Objects to MZR Disks

MZR(Multi-Zone Recording) disks are widely used for their high overall bandwidth and capacity nowadays. Since MZR disks show different bandwidths and capacities depending on the zone, data placement schemes for traditional CAD(Constant Angular Density) disks are not suitable for MZR disks. Especially, since the performance of continuous media servers strongly depend on the block placement scheme for the disks, a novel block placement scheme for continuous media server-equipped MZR disks is required. In this paper, we propose a new block placement algorithm for MZR disks for continuous media servers. The proposed scheme exploits the smoothing of VBR data before storing them. Simulation results show that the proposed scheme outperforms both CRT and NCTT.