Method for organizing storage devices of unequal storage capacity and distributing {HEAD ~ data} using {TAIL ~ different raid formats} depending on size of rectangles containing sets of the storage devices 
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Method for organizing storage devices of unequal storage capacity and distributing { HEAD ~ data } using { TAIL ~ different raid formats } depending on size of rectangles containing sets of the storage devices
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH