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iWARP RDMA not working on vNICs RRS feed

  • Question

  • In preparation for setting up S2D, I want to test the RDMA (iWARP) communication.
    We use Qlogic QL41164HMRJ nics (Dell R640 - Server 2019).
    RDMA communication works great (diskspd.exe) if I use the pNICs directly for this.
    The counters in PerfMonitor give me positive results.

    When using SET switch with vNICs it only works from vNIC to pNIC direction (SET and vNICs at the sending server, no SET at receiving server) not in the opposite direction (pNIC to vNIC). So, The vNIC does send RDMA traffic but can never receive it (Firewall is disabled on both servers)

    In the end, both servers must have a SET switch with vNICs of course

    Any ideas?



    • Edited by sknoc Sunday, October 20, 2019 6:03 PM
    Sunday, October 20, 2019 4:33 PM

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