A method and apparatus for establishing multiple network sessions over an arbitrary network topology comprises receiving network configuration information describing an initiator system and a target controller. In the device and method, an alternating current scan signal having a frequency and a current value is supplied to each of four corners of the capacitive touch panel. After destaging all dirty data accumulated in the disk cache of the migration source storage to the external volume, an expansion device for virtualizing the external volume is mapped to the migration destination logical unit. In addition, energy density, spot size, and pulse duration are established at levels sufficient to induce ablation of sapphire. The images are analyzed to determine performance data of the target application, and the performance data are stored in a memory store. The methods also include calculating, using a processor, a first set of errors for each pixel associated with the set of basis vectors, and one or more additional sets of errors for each pixel associated with one or more subsets of the set of basis vectors.