As a result, at block 420, the FTL may determine {HEAD ~ a free portion} of {TAIL ~ NAND memory} in which to write information of the write request 
of
As a result , at block 420 , the FTL may determine { HEAD ~ a free portion } of { TAIL ~ NAND memory } in which to write information of the write request
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH