A seek minimizing process for use in storage controller of a data storage system
is presented. The process collects statistics for physical devices storing mirrored
logical volumes. The statistics include utilization and activity level. The process
determines from the statistics the top n busiest physical devices. The process
evaluates each of the n physical devices for mirror policy adjustment that will
result in reduced seek time when the utilization of the physical device is greater
than a threshold, for example, 50%.