At block 430, {HEAD ~ the FTL} may determine {TAIL ~ ECC} for the information to be written to NAND memory 
At block 430 , { HEAD ~ the FTL } may determine { TAIL ~ ECC } for the information to be written to NAND memory
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH