How do I migrate external drive without wiping Time machine?

Discussion in 'Mac Accessories' started by yalag, May 14, 2013.

  1. yalag macrumors 65816

    Nov 18, 2007
    I bought a new external drive that is a bigger for all my media files. I back them up via time machine. I don't want time machine to treat this new drive as new files because that'll waste all the space in the time machine drive. How do I tell time machine to treat content in this new drive the same as the old one?
  2. ColdCase macrumors 68030

    Feb 10, 2008
    I think you use disk utility to partition the new drive into two drives, one sized for what you want to allocate to TM, the other for the rest of your files. That will limit the amount of disk space TM can take to the partition size.

    TM files will eventually grow to take up as much disk space as it can..

Share This Page