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