Running Windows 7 (in Parallels) from SD card?

Discussion in 'Windows, Linux & Others on the Mac' started by petrucci666, Mar 18, 2012.

  1. petrucci666 macrumors 6502a

    petrucci666

    Joined:
    Apr 30, 2009
    Location:
    Los Angeles, CA
    #1
    Is running W7 off of a SD Card too slow?

    I'm running Parallels 7 (installed on the Mac) with Lion 10.7.3.

    Since I have an MBA with 128GB, so disk space is precious. That's why I want to run W7 off of a SD card. I'd do it on an external hard drive but lugging it around is kinda painful.


    Thanks!
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Possible, but you need a fast SD card for that, as typical and cheap SD cards offer no more than 10 to 20 MB/s read speeds, which will be a drag. You need to look at Class 10 cards at least.
     
  3. teddynewell macrumors newbie

    Joined:
    Aug 30, 2010
    #3
    I have the same question - could you let us know the results if you try it?
     
  4. brendu macrumors 68020

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    Apr 23, 2009
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    USA
    #4
    I am also curious about this if anyone has done it and can weigh in...
     
  5. Sincci macrumors regular

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    Aug 17, 2011
    Location:
    Finland
    #5
    Running Windows via bootcamp is not possible with SD-cards since Windows only boots from internal harddrives (and ssd's), but you can of course put your virtual machine image in the sd-card (or usb-stick or external harddrive) and run it from there. It might be a little slow with sd-card though..
     
  6. petrucci666 thread starter macrumors 6502a

    petrucci666

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    Apr 30, 2009
    Location:
    Los Angeles, CA
    #6
    I tried it, worked great. Except, my SD card was a Class 4 card so it was fairly slow running Windows 7. You should get a 32GB Class 10 (or above) SD card and it'll work great.
     
  7. brendu macrumors 68020

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  8. petrucci666 thread starter macrumors 6502a

    petrucci666

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    Apr 30, 2009
    Location:
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    #8
  9. brendu macrumors 68020

    Joined:
    Apr 23, 2009
    Location:
    USA
    #9
    Yeah I only want it for parallels, thanks for the help.
     
  10. throAU macrumors 603

    throAU

    Joined:
    Feb 13, 2012
    Location:
    Perth, Western Australia
    #10
    In general use, 20-30mb/sec is probably fine, given that the SD card has zero seek time.

    Sure it won't be fast at streaming IO, but most PC use isn't doing that.

    I'll wager that comparing on-paper numbers of the SD card IO to a hard drive doesn't tell the whole story.
     

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