On Wed, Oct 20, 2021 at 09:33:43AM -0700, Christoph Hellwig wrote: > On Wed, Oct 20, 2021 at 12:51:05PM +0100, Dan Greenfield wrote: > > Do you have any ideas how they could have been able to utilise RDMA so that node A can directly access data chunks stored on XFS on node B? Is the only approach to mmap the chunk on node B and then RDMA it to/from node A? > > I'm not going to watch a video, but with the pNFS code other nodes can > access data on an XFS node directly using any SCSI transport. > For RMDA that would be SRP or iSCSI/iSER. > > Note that I also have an unfinished draft to support NVMe, which has > an RDMA transports as well and someone else could trivially reimplement > that as well. Oh, and just FYI here are my slides on the pNFS support: https://events.static.linuxfound.org/sites/events/files/slides/pnfs.pdf
