The intermediary device includes {HEAD ~ a power saving control function} for {TAIL ~ the disk device} and carries out operation control such as spin off and spin up of disk devices in accordance with conditions set in advance 
for
The intermediary device includes { HEAD ~ a power saving control function } for { TAIL ~ the disk device } and carries out operation control such as spin off and spin up of disk devices in accordance with conditions set in advance
OTH OTH OTH OTH HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH