How Fast (Reads and Writes) should a USB 3 Flash drive be on a MBA to run external VM

Discussion in 'MacBook Air' started by cis4life, Aug 29, 2014.

  1. cis4life macrumors regular

    Apr 4, 2008
    How fast should an external usb 3.0 flash drive be in order to run a VM from it (windows 8). (Anyone who tried it)
  2. joshlalonde macrumors 6502


    Jul 12, 2014
    I'm not sure exactly, but wouldn't it be better to run off an External drive instead? Then you have more space to install additional VMs.

    You already have a thread on the same topic?
  3. ha1o2surfer macrumors 6502

    Sep 24, 2013
    Well sequential speeds aren't going to help you here (unless you are pausing the VM alot since it copies the contents back to ram when being unpaused) USB is not known for it's large queue depths so OS performance from these drives will be slow no matter what due to the interface. Slow is relative but booting Mac OSX or Windows nativly from a USB drive is surprising fine so doing VM work wont suffer too bad unless you have multiples on the same drive.

    I use a patriot USB 3 256GB drive and I haven't got annoyed by the speed yet.
  4. Redbull916 macrumors member


    Mar 27, 2012
    Brighton, UK
    I run a few 2008 servers from an external 1tb thunderbolt drive. The cost of thunderbolt drives have come down a lot and makes more sence to go down that route rather than USB.

Share This Page