ONTAP 9.14

to Japanese version

RDMA overview

ONTAP’s Remote Direct Memory Access (RDMA) offerings support latency-sensitive and high-bandwidth workloads. RDMA allows data to be copied directly between storage system memory and host system memory, circumventing CPU interruptions and overhead.


Beginning with ONTAP 9.10.1, you can configure NFS over RDMA to enable the use of NVIDIA GPUDirect Storage for GPU-accelerated workloads on hosts with supported NVIDIA GPUs.

RDMA cluster interconnect

RDMA cluster interconnect reduces latency, decreases failover times, and accelerates communication between nodes in a cluster.

Beginning with ONTAP 9.10.1, RDMA cluster interconnect is supported for certain hardware systems when used with X1151A cluster NICs. Consult the table to learn what systems are supported in different ONTAP releases.

Systems Supported ONTAP versions
  • ETERNUS AX4100


ONTAP 9.10.1 and later

Given the appropriate storage system set up, no additional configuration is needed to use RDMA interconnect.

Top of Page