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What InfiniBand protocol is used by the Exadata Storage Servers to communicate with the Oracle Database?

April 26, 2017Communicate exadata infiniband oracle database Protocol servers storage Used

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What InfiniBand protocol is used by the Exadata Storage Servers to communicate with the Oracle Database?

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The Zero-loss Zero-copy Datagram Protocol (ZDP) protocol is used to communicate between the Exadata storage servers and the Oracle Database. It is based on the Reliable Datagram Sockets (RDS) version 3 (OFED version 1.3.1). Oracle’s InfiniBand interconnect protocol uses DMA, (Direct Memory Access) to ensure very low CPU overhead by directly moving data from the wire to database buffers with no extra data copies being made.