Embodiments herein illustrate patterned servo data that is used to facilitate subsequent servo writing to a magnetic disk while allowing the patterned disk to be planarized with a relatively simple planarization process. Sensors are disposed on the substrate to face the lamps, and detect operation state of the lamps to output sensing signals. The data items in the groupings are reported. Then, drug susceptibility is measured based upon each calculated time differential value, so that drug the susceptibility measurement is performed quickly or accurately. A compressible material containing the bond enhancement member may be compressed between a hard tool and the CMC material to drive a bond enhancement member partially into the CMC material. More specifically, a bar graph would be used to show the user’s participation.