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Unable to connect RHEL 8.10 to NVMe over InfiniBand on EF300

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e-series-systems
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Applies to

  • NetApp E-Series EF300
  • Red Hat Enterprise Linux (RHEL) 8.10
  • NVMe over InfiniBand (NVMe/IB)

Issue

  • Problem connecting Red Hat Enterprise Linux (RHEL) 8.10 host to NetApp EF300 storage using NVMe over InfiniBand.
  • Running the command to connect results in errors and no /dev/nvme0 or nvme0n1 devices are created.
  • Observed error messages:
[Thu Oct 22 11:55:24 2026] nvme_rdma: unknown parameter 'pi_capable' ignored
[Thu Oct 22 11:56:34 2026] nvme nvme0: creating 1 I/O queues.
[Thu Oct 22 11:56:34 2026] mlx5_core 0000:38:00.0: mlx5_cmd_out_err:838:(pid 99705): CREATE_MKEY(0x200) op_mod(0x0) failed, status bad parameter (0x3), syndrome (0x35e6ec), err (-22)
[Thu Oct 22 11:56:34 2026] nvme nvme0: failed to initialize PIMR pool sized 128 for QID 1
[Thu Oct 22 11:56:34 2026] nvme nvme0: rdma connection establishment failed (-22)

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