wherein {HEAD ~ an operation mode} of {TAIL ~ said second intermediary port} is not a power saving mode and said intermediary device is configured to access said second disk device via said second intermediary port while an operation mode of said first intermediary port continues to be a power saving mode 
of
wherein { HEAD ~ an operation mode } of { TAIL ~ said second intermediary port } is not a power saving mode and said intermediary device is configured to access said second disk device via said second intermediary port while an operation mode of said first intermediary port continues to be a power saving mode
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH