{HEAD ~ A storage apparatus} is provided that is capable of reducing {TAIL ~ data maintenance management costs} with a performance that is both highly reliable and fast 
{ HEAD ~ A storage apparatus } is provided that is capable of reducing { TAIL ~ data maintenance management costs } with a performance that is both highly reliable and fast
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH