Such a request, for example, may originate from {HEAD ~ a processor} connected to {TAIL ~ the FTL} 
Such a request , for example , may originate from { HEAD ~ a processor } connected to { TAIL ~ the FTL }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL