A method includes responding to a wear level operation request by copying data from a first portion of a first memory array to a second portion of the first memory array, and copying metadata associated with {HEAD ~ the data} from a third portion of a second memory array to {TAIL ~ a fourth portion} of the second memory array 
to
A method includes responding to a wear level operation request by copying data from a first portion of a first memory array to a second portion of the first memory array , and copying metadata associated with { HEAD ~ the data } from a third portion of a second memory array to { TAIL ~ a fourth portion } of the second memory array
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH