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Forums Storage & Archiving 2018 Mac Mini 10Gbit vs Sanlink TB2 to 10Gbit, sysctl changes?

  • 2018 Mac Mini 10Gbit vs Sanlink TB2 to 10Gbit, sysctl changes?

  • Chuck Kenney

    February 5, 2020 at 2:40 am

    I’ve had a group of Mac Pros (the trashcans) running Mojave and SanLink2 TB to 10Gbit adapters getting about 4-6Gbit when using tests like AJA or Helios. I just added a 2018 Mac Mini to the mix with internal 10Gbit ethernet, and applying the same sysctl.conf changes from the Mac Pros to the Mini is resulting in about 2Gbit (even when nobody is at the office doing anything on the network)

    Anyone have any tried and true settings for the Macs with built in 10Gbit? I know Apple has added some auto tuning, and increased default values, and it seems like there may be some conflicting info out there. I’ve tried: my own settings that the Mac Pros are using, and the settings from each of the following articles: and

    The target is a NetApp san that has been able to handle everything we’ve thrown at it so far (and if I run the test on a Mac Pro right now, I still get 4-6Gbit).

    My current nsmb.conf file is (on all Macs):

    It’s not a HUGE deal if I can’t get the Mini running at the same speed, as it is acting as a backup target and not workstation, but the techie in me in annoyed that I can’t get it to work.

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