A portion of each of the caches of the first and second clusters is allocated to {HEAD ~ a buffer} equal in {TAIL ~ size} to the larger NVS buffer 
equal in
A portion of each of the caches of the first and second clusters is allocated to { HEAD ~ a buffer } equal in { TAIL ~ size } to the larger NVS buffer
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH