receiving by {HEAD ~ a data migration node} in {TAIL ~ a network} an indicator that the data migration node is responsible for managing data migration from a first storage to a second storage 
in
receiving by { HEAD ~ a data migration node } in { TAIL ~ a network } an indicator that the data migration node is responsible for managing data migration from a first storage to a second storage
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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