The use of Remote Direct Memory Access, or RDMA, is highly encouraged for high-speed interconnects between Hyper-V hosts for functionality such as Live Migration. RDMA requires both RDMA-enabled NICs and switches that support RDMA to exchange data in main memory without requiring the CPU or operating system to act as an intermediary. RDMA-enabled server adapters boost performance because it reduces the overhead of resource consumption (mainly CPU) and increases network throughput rates and lowers latency.
RDMA is currently not supported between a Hyper-V host and a FlashArray. Therefore, RDMA cannot be used for storage communication. In the case of a SOFS the network between the SOFS and the Hyper-V cluster should have RDMA enabled and utilize SMB Direct for lower CPU and higher throughput.