An article of foot apparel includes a platform curved to anticipate the natural movement of a foot. The file system stores a first portion of a file in a first data storage medium and a second portion of the file in a second data storage medium based on an intrinsic value of at least a part of the file. A system is also provided whereby the kelp is maintained in solid form, and dissolved in water just prior to use. In a second, alternative embodiment, both the primary LUN and copy LUN are READ and WRITE accessible immediately following the nearly instantaneous initialization of the copy LUN.