In accordance with , HDD 20 are preferentially connected to row 3 among rows 1 to 3 and then {HEAD ~ HDD} 20 are preferentially connected to {TAIL ~ row} 2 
are preferentially connected to
In accordance with , HDD 20 are preferentially connected to row 3 among rows 1 to 3 and then { HEAD ~ HDD } 20 are preferentially connected to { TAIL ~ row } 2
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH