Hierarchical organization structure of the storage medium

The present invention discloses a hierarchical organization of the storage medium, which includes a hierarchical organization root access layer, a plurality of dielectric layers and the dielectric layer classification, wherein the plurality of dielectric layers each classification represents a dielectric layer classification, so that each dielectric layer is classified according to a predetermined plurality of media classification into groups, each group comprising a plurality of nodes of the same type. By aspect of the present invention can easily achieve a variety of needs and select the disk to achieve a variety of options strategies.