The present invention provides method, apparatus and program product by which a data storage controller dynamically reconfigures NVS and {HEAD ~ cache memory} in {TAIL ~ multiple clusters} 
The present invention provides method , apparatus and program product by which a data storage controller dynamically reconfigures NVS and { HEAD ~ cache memory } in { TAIL ~ multiple clusters }
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL