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