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RDMA
(redirected from Remote Direct Memory Access)

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RDMA
(Remote Direct Memory Access) A communications protocol that provides transmission of data from the memory of one computer to the memory of another without involving the CPU. InfiniBand, Virtual Interface (VI) and RDMA Over IP are all forms of RDMA. Implemented in hardware on the network adapter (NIC), RDMA techniques have been developed to accommodate the ever-increasing network speeds. See DMA, InfiniBand, VI and RDMA Over IP.
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Voltaire switches provide 10 or 20 Gigabits/second InfiniBand bandwidth and data acceleration that takes advantage of Remote Direct Memory Access (RDMA) technology to reduce latency and latency standard deviation while increasing message throughput for automated trading environments.
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With remote direct memory access (RDMA), an addition to the IP standard, computers can directly place information onto another computer's memory with minimal demand on the memory bus and on the CPU, replacing TCP/IP copy requirements that add latency and consume CPU and memory resources.
Has Ethernet's time come for storage systems? by Zeile, Mike / Computer Technology Review
 
 
 
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