The access is provided either via block level requests over the SAN or via {HEAD ~ file level requests} made to {TAIL ~ a server} over a local area network  
made to
The access is provided either via block level requests over the SAN or via { HEAD ~ file level requests } made to { TAIL ~ a server } over a local area network
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH