Home > Storage > PowerScale (Isilon) > Industry Solutions and Verticals > Analytics > Dell PowerScale and NVIDIA GPUDirect Performance Report > Introduction
Dell PowerScale OneFS v9.2 provides expanded support for NFSv3 by introducing NFS over Remote Direct Memory Access (NFSoRDMA) into the OneFS codebase. In addition, PowerScale nodes include Mellanox ConnectX-based network interface cards (NICs) supporting RDMA over Converged Ethernet (RoCE). These technologies, in conjunction with NVIDIA GDS, allow a direct path for data from the GPU to network adapters and storage devices, allowing read/write operations to and from GPU memory. This direct I/O path eliminates unnecessary memory copies, decreases CPU overhead, and reduces latency, resulting in significant performance improvements.
Dell Technologies engineering conducted a series of tests to demonstrate the PowerScale NFSoRDMA support with GDS and documented the results and findings from these tests. The following information describes the test infrastructures and settings used for this effort.