Does OS X support SMB Direct (RDMA)? A pretty fundamental question, that I haven't found any references too on the internet. Here too, searching for &quot;RDMA&quot; or &quot;SMB Direct&quot; returned 0 results.
SMB over RDMA technology has been around for 8 years since SMB 3.0, and gained broader popularity in the last couple of years. SMB3 is of course part of OS X, but I wouldn't automatically assume Samba and OS X implemented it. Any leads, anyone?
Well, got this from ATTO tech support today:

macOS (macOS 10.14.x, macOS 10.15.x Catalina, &amp; macOS 11.x Big Sur)
does not support SMB Direct, nor RoCE.

:-(
I sent a feature request to Apple. I'm sure that because I said so they'll get right to it.