reviving question : fastest connection between nMP and oMP

Discussion in 'Mac Pro' started by rueyloon, Feb 6, 2017.

  1. rueyloon macrumors regular

    Sep 24, 2013

    hi, just reviving my question on what's the fastest connection that I can create between the oMP and nMP ?

    It is possible to have ethernet over USB3 between the 2?
    or maybe with a USB3 -> thunderbolt adapter in between?

    cheers TIA
    --- Post Merged, Feb 6, 2017 ---
    like someone else pointed out I can fit the oMP with USB 3.1

    then get a USB 3.1 to thunderbolt adapter

    does this mean I can get thunderbolt on the oMP?
    anyone willing to try this out?
  2. Draeconis, Feb 7, 2017
    Last edited: Feb 7, 2017

    Draeconis macrumors 6502a

    May 6, 2008
    To a certain degree, this venture is pointless, as you haven't mentioned what hard drive your older Mac Pro uses. Even if you use a SATA-III adapter on a PCIe slot, you'd still only be able to hit ~550Mbps max internally. FW800 is obviously 800Mbps, so you wouldn't benefit from more than that.

    If you had something insane like an SM951/multiple SM951s in RAID0, then it gets more interesting. If you require both machines to be on and booted into an OS, you could link them via FireWire or Ethernet. I've never tried it, but I guess you could try using both Ethernet ports and bonding both at either end, for 2Gbps.

    Since the Mac Pro has PCIe lanes free and the 2013 Mac Pro has six Thunderbolt ports you could convert using Thunderbolt to Ethernet adapters, I guess you could get up to 8 gigabit ports on each machine, bond them all into a single link and connect them to each other, although again that's completely speculative.

    After that, it might be faster to get fibre cards for both (the Late 2013 model would need an enclosure for this too) and link them like that.

    And I think that's your limit.

    Your USB3 / Thunderbolt ideas are certainly creative, but unfortunately won't work.
  3. Slash-2CPU, Feb 7, 2017
    Last edited: Feb 7, 2017

    Slash-2CPU macrumors 6502

    Dec 14, 2016
    New Orleans, USA
    Without adding any extra cards, gigabit Ethernet is it. Dual links with LACP would be a step up.

    You could buy a 10Gb Ethernet card plus a Thunderbolt to 10Gb adapter.
    Small tree makes a 10Gb NIC for cMP.
    Akitio makes a TB-10Gb adapter.
    Not cheap. Think $700-800 total.

    I wouldn't be surprised if using PCIe SSD on the cMP if you could break 900MB/s.

    Up to a point, another option is a USB 3.1 SSD capable of 500+ MB/s and a USB 3.1 card in the cMP. Not exactly practical.
  4. ActionableMango macrumors G3


    Sep 21, 2010
    Not possible.
  5. Flint Ironstag macrumors 6502a

    Flint Ironstag

    Dec 1, 2013
    Houston, TX USA
    - what are you trying to do (what will your workflow look like or is this a one off)?
    - what is your budget?
    - what type of storage is involved?
    - do you have any existing infrastructure (fibre channel, 10GbE)?

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4 February 6, 2017