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