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