Protection from uncorrectable media errors are provided for a RAID-configured storage system by a technique in which c redundancy information sectors are associated with n data information sectors. The solar cell is fabricated by providing a substructure comprising an absorber over a back contact having a P1 line therein and scribing a P2 line in the absorber by mechanical scribing and laser scribing after the mechanical scribing. In some embodiments, the substrate can be a building substrate such as, for example, kraft paper placed on insulation or oriented strand board.