Setting up a scratch disc on an external drive...

Discussion in 'Mac Pro' started by munckee, Mar 15, 2006.

  1. munckee macrumors 65816

    Joined:
    Oct 27, 2005
    #1
    I just got a 12" powerbook to use as my primary design computer for a while. I'd like to set up a scratch disc for photoshop work.

    Is it possible to set up a scratch disc on an external in such a way that while I'm home and the drive is plugged in, its recognized, but when I'm carrying the computer and working elsewhere, the computer realizes that the scratch disc isn't present?

    I'm assuming a FW drive would be better for a scratch disc than a USB2 drive?
     
  2. munkees macrumors 65816

    munkees

    Joined:
    Sep 3, 2005
    Location:
    Pacific Northwest
    #2
    Firewire is much better than USB2, as for the photoshop scratch disk, I can't help
     
  3. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
  4. munckee thread starter macrumors 65816

    Joined:
    Oct 27, 2005
    #4
    Ok, so what exactly would happen if I had a scratch disc set up on the external and then took my computer somewhere and used photoshop without the scratch disc? Would it just run really slow?
     
  5. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #5
    Possibly kernel panic. Spam your logs that the /var/vm was missing. Run really slowly. Behave strangely.

    Anyway, can you even set up scratch on a firewire drive? It's not mounted at boot time, so there's no place for /var/vm to be pointed at.
     

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