Boot off USB 3.0 SSD?

Discussion in 'Mac mini' started by zaius55, Jun 21, 2014.

  1. zaius55 macrumors newbie

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    Jun 21, 2014
    #1
    Was going to buy a mac mini for studio recording. I have an external USB 3.0 SSD drive, was curious if I could put the OS on there and boot from it?

    Thanks!
     
  2. Weaselboy Moderator

    Weaselboy

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    #2
    Sure... that will work just fine and a lot of people do it. The only issue is the TRIM command is not supported over USB and is over Thunderbolt if you are concerned about that.
     
  3. zaius55 thread starter macrumors newbie

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    Jun 21, 2014
    #3
    I can't seem to find a thunderbolt external enclosure anywhere. Can you point me in the right direction?

    Thanks
     
  4. Yakibomb macrumors 6502

    Yakibomb

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    #4
    Maybe "this" will help :)
     
  5. Weaselboy Moderator

    Weaselboy

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    #5
    Sure... the Delock model here is popular among forum members. If you search the forums you will find several comments from users.

    There is a test of that enclosure in this thread by member Sasasushi.
     
  6. deeddawg macrumors 604

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    US
    #6
    What's the benefit of dropping $100 on an external thunderbolt enclosure for an SSD vs installing an SSD inside the mini?
     
  7. Cape Dave macrumors 68000

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    #7
    Depending on which stall the existing hard drive is in, adding a drive to the inside can be somewhat problematic for those not handy with small things :)
     
  8. jbarley macrumors 68030

    jbarley

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    #8
    I've used this seagate unit for about a year now, works well and the drives are very easy to change, just unplug the old and plug in the new.
     
  9. Zellio macrumors 65816

    Zellio

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  10. Weaselboy Moderator

    Weaselboy

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    #10
    Yes it does. UASP support came along with the new Ivy Bridge chipset that hit in the 2012 models.
     
  11. Zellio macrumors 65816

    Zellio

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    #11
    I would get a usb 3 external with UASP op. Even with trim, I only got 380 read/340 write on a crucial m500 480 gb boot drive. With usb uasp, I get 440 read/400 write.
     
  12. Fishrrman macrumors G4

    Fishrrman

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    Feb 20, 2009
    #12
    RE the post above:
    [[ I would get a usb 3 external with UASP op. Even with trim, I only got 380 read/340 write on a crucial m500 480 gb boot drive. With usb uasp, I get 440 read/400 write. ]]

    As another reference point, I use a Crucial m500 240gb as an external boot drive, mounted in a plugable.com "lay-flat" USB3/SATA dock with UASP support.

    Read speeds are 432mbps and writes are 276mbps.
    I believe the lower write speed is due to the size of my drive, which is half that of the poster above...

    As pointed out, the disadvantages of booting via USB3 vs. thunderbolt are that you lose the "TRIM" feature (although some newer SSD's don't seem to need it), and that firmware updates may become problematical.

    It depends on whether these are "can't live without" features for you.
    In my case, I'm willing to live without them...
     
  13. d3vilsadvocate macrumors newbie

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    Apr 15, 2012
    #13
    the inoteck usb 3.0 enclosure supports SATA III.
     
  14. zaius55 thread starter macrumors newbie

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    Jun 21, 2014
    #14
    Does that support USAP?
     
  15. Weaselboy Moderator

    Weaselboy

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    #15
    The Delock I mentioned is a Thunderbolt connection, so UASP is not an issue. But yes the Inateck does support UASP. Make sure you get the correct model though, as they do make one without UASP support.
     
  16. zaius55 thread starter macrumors newbie

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    Jun 21, 2014
    #16
  17. SpinalTap macrumors regular

    SpinalTap

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    #17
  18. Weaselboy Moderator

    Weaselboy

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    #18
    If you want to get the full speeds the drive is capable of, yes.
     

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