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Linux 5.5 Adds NFS Client Support For Cross-Device Offloaded Copies (Server To Server)

Written by Michael Larabel in Linux Storage on 7 December 2019 at 12:59 AM EST. 4 Comments

With NFSv4.2 is the server-side copy (SSC) functionality with the Linux 5.5 kernel's NFS client-side support for that support in allowing "inter" copy offloads between different NFS servers.

This support allows for server-to-server efficient file copies with NFSv4.2 SSC rather than first having to copy to the client system. The NFS client changes also introduce new RDMA tracepoints for debugging congestion control and various other fixes.

For those wondering about other Linux NFSv4.2 features can see this Red Hat slide deck covering other work as of 2018.

4 Comments

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.