backing up an external hard drive with TM

Discussion in 'macOS' started by 4now, May 15, 2008.

  1. 4now macrumors 6502

    Sep 20, 2007
    Is it possible to add an external drive to be backed up by Time Machine.

    For example:
    I have a MacBook Pro & will have two external Hard drives.

    I want to use one external HD for storage only (since space is limited on my MBP)

    then a second external HD for Time Machine to backup the files from both the MBP and the Storage HD.

    that way everything is copied at least once.
  2. cdarlington1 macrumors regular


    Jun 6, 2006
    St. John's, Newfoundland
    Yes you can...

    You the time machine preference pane, you can customize exactly what gets backed up so you can have your MBP internal drive and 1 external drive back up to the other external drive. One thing to keep in mind, is you will want the drive that is going to be backing up everything to be the same or larger in terms of space...that way it can keep more copies of backups...say you have an internal 160gb and a external drive (for video or music or movies, etc...) and it's 500gb. I would recommend a 750gb external for Time Machine...hope this makes sense (long day at work today...).
  3. 4now thread starter macrumors 6502

    Sep 20, 2007
    o yeah that makes sense

    thats how I was thinking

    thanks so much
  4. 4now thread starter macrumors 6502

    Sep 20, 2007
    I don't see an option to add an external drive to what is being backed up.

    It only appears to allow you to 'exclude' items

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