What is NFS over RDMA?
Network File System (NFS) is a ubiquitous component of most modern clusters. One of the more popular networking offload technologies is RDMA (Remote Direct Memory Access). RDMA makes data transfers more efficient and enables fast data movement between servers and storage without involving its CPU.
What is RoCE network?
Introduction to RoCE RDMA over Converged Ethernet (RoCE) is a network protocol that leverages Remote Direct Memory Access (RDMA) capabilities to dramatically accelerate communications between applications hosted on clusters of servers and storage arrays.
How does RDMA transfer data?
RDMA supports zero-copy networking by enabling the network adapter to transfer data from the wire directly to application memory or from application memory directly to the wire, eliminating the need to copy data between application memory and the data buffers in the operating system.
What is Nfsd?
The nfsd is a user-level process, but contains no code to process NFS requests. The nfsd issues a system call that gives the kernel a transport endpoint. Invokes a system call to start in-kernel processing of NFS requests on the transport endpoint.
Does Mellanox support iWARP?
Mellanox, Xilinx, and Broadcom recommend and exclusively support RoCE/RoCEv2. Intel initially supported iWARP but now supports both iWARP and RoCEv2. Other vendors involved in the network industry provide support for both protocols such as Marvell, Microsoft, Linux and Kazan.
What is RDMA network fabric?
RDMA is Remote Direct Memory Access and the fabric is the storage network. RDMA over Fabrics is about increasing performance for access to shared data and taking advantage of solid-state memory technology.
When did Mellanox acquisition close?
On March 11, 2019, Nvidia announced its intent to acquire the company for $6.9 billion. Other companies willing to acquire Mellanox were Intel, Xilinx and Microsoft. On April 16, 2020, it was announced that it closed the deal on April 27, 2020, with the approval from the EU, U.S. and Chinese antitrust authorities.
https://www.youtube.com/watch?v=vKZqmZA4kIA