A switch-based inter-device notational data movement system includes a first processing system in a first chassis that provides a first thread, a second processing system in a second chassis that provides a second thread, each of which are coupled to a memory system by a switch device. A controller device coupled to the switch device receives a data transfer communication from the first thread requesting to transfer data to the second thread. That data stored in a first portion of the memory system associated with the first thread in a memory fabric management database included in the switch device. The controller device then modifies notational reference information in the memory fabric management database to disassociate the first portion of the memory system and the first thread and associate the first portion of the memory system with the second thread, allowing the second thread to reference the data using request/respond operation.