Data storage device capable of storing multiple sets of history information on input/output processing of {HEAD ~ security data} without {TAIL ~ duplication} 
without
Data storage device capable of storing multiple sets of history information on input / output processing of { HEAD ~ security data } without { TAIL ~ duplication }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL