Each logical compartment includes {TAIL ~ a placement policy} including a set of storage placement rules for {HEAD ~ placement} of storage symbols into a set of physical storage containers 
Each logical compartment includes { TAIL ~ a placement policy } including a set of storage placement rules for { HEAD ~ placement } of storage symbols into a set of physical storage containers
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH