The only elements in the FC SAN which require modification to support {HEAD ~ the FAST protocol} are {TAIL ~ the FAST IOC} and FAST switch 
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The only elements in the FC SAN which require modification to support { HEAD ~ the FAST protocol } are { TAIL ~ the FAST IOC } and FAST switch
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH