a management information recording device for recording {HEAD ~ information} concerning {TAIL ~ each logical unit} and information concerning disk units corresponding to each logical unit in association with each other 
concerning
a management information recording device for recording { HEAD ~ information } concerning { TAIL ~ each logical unit } and information concerning disk units corresponding to each logical unit in association with each other
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH