US Patent 9672107 Data protection for a data storage device

Managing data stored in a Data Storage Device (DSD) including a plurality of disk surfaces for storing data. Head mapping information is received from the DSD associating addresses for data with different disk surfaces of the plurality of disk surfaces, and data is stored on a first disk surface of the plurality of disk surfaces. Redundant data for the data stored on the first disk surface is stored on a second disk surface of the plurality of disk surfaces using the head mapping information.