running vm on external drive (usb 2.0)

Discussion in 'Mac mini' started by c55, Jul 2, 2015.

  1. c55 macrumors regular


    May 3, 2015
    How do virtual machines do on external drives with the mac mini 2011? it has usb 2.0. I would only be running windows 10 preview, no heavy apps just web browsing and testing out a couple of things. I am running the win 10 preview in virtualbox on my iMac right now but it's all on the main hard drive not external so not sure if it would make a huge performance impact or not.
  2. yjchua95, Jul 2, 2015
    Last edited: Jul 3, 2015

    yjchua95 macrumors 604

    Apr 23, 2011
    GVA, KUL, MEL (current), ZQN
    Really really badly, if it's over USB 2.0. Don't even think about it.

    If it's on a USB 3 (with UASP support) drive over a USB 3 port, the performance is pretty decent.
  3. dkl macrumors member

    Aug 4, 2012
  4. ixxx69 macrumors 65816

    Jul 31, 2009
    United States
    If it's really just to test/check some things out on W10, then usb2 will do in a pinch, it'll just be slow to get going. It would be pretty frustrating for regular use.
  5. MRrainer macrumors 65816

    Aug 8, 2008
    Zurich, Switzerland
    I certainly wouldn't run W10.
    But if you have something very low on I/O, it should be OK-ish.
    E.g. things like a Live-CD (if the ISO is on the main hard-disk, of course) or related stuff like pfSense, which can run read-only from an USB-stick.

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4 July 2, 2015