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 {HEAD ~ metadata} associated with the data from {TAIL ~ 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 data from a first portion of a first memory array to a second portion of the first memory array , and copying { HEAD ~ metadata } associated with the data from { TAIL ~ 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 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 OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH