Backup to USB: How to do it?

Discussion in 'OS X Mavericks (10.9)' started by MacNoobGuy, Nov 21, 2013.

  1. MacNoobGuy macrumors 6502

    Apr 18, 2012
    Hi all, I'm running OSX Mavericks. I've got 2 external USB drives. I want to back them up, but each one has different files. How can I back them up without losing any files? I want to make one of them the main drive and the other one I want to make the 'back up' drive. Are there any tools I can use to do this?

    This is another way to describe my situation:
    I have two disks, disk 1 and disk 2.

    on disk 1 I have a bunch of files....say files a,b,c,z
    on disk 2 I have a bunch of files....say files a,q,r,z

    I want to merge disk 1 and disk 2 onto a single disk, say disk 1.

    Disk 1 will then have a single copy of a,b,c,q,r,z

    Also, I'm using Time Machine and it's been great. However, I only have one Mac so if the Mac dies I won't be able to access the Time Machine backup.

    Is there an App I can use to copy files from my Mac Mini internal HDD to the external drive? I want it to be done automatically without me needing to use the copy and the paste function.

  2. pastrychef macrumors 601


    Sep 15, 2006
    New York City, NY
  3. bobr1952 macrumors 68020


    Jan 21, 2008
    Melbourne, FL
    ...or SuperDuper--which is what I use to back up my externals.
  4. fisherking macrumors 603


    Jul 16, 2010
    ny somewhere
    if the mac dies, you move to another mac...and get your data from time machine.
    meanwhile, carbon copy cloner (as mentioned) is great...
  5. MacNoobGuy thread starter macrumors 6502

    Apr 18, 2012
    Thanks for the replies guys, but how do I solve my issue with differing files?
  6. maflynn Moderator


    Staff Member

    May 3, 2009
    It sounds like you need to organize your files and your external disk set up, before settling in on a backup strategy.

    I'd say, if you have the storage, put the data on your Mac, and then use the external disks for backups (its always good to have to separate backups).
  7. Fishrrman macrumors G5


    Feb 20, 2009
    Do you wish to "combine" the contents of the two drives only once?
    Or - do you wish this to be an "ongoing process"?

    If all you need to do is a "one-time" merging, just do it with the finder.
    Manually copy file a, then file b, then file c, etc.
    Just take care, keep notes, until you get the job done.

    If you wish to keep the two drives backed up on an ongoing basis, I suggest that it might be simpler to PARTITION your target drive.

    Then, backup up each source drive to its own partition.

    Use a cloning app (such as CarbonCopyCloner or SuperDuper) to clone the contents of "drive a" to "partition a", then clone "drive b" to "partition b".

    This will be BY FAR the easiest and quickest way to back up drives a and b -- and keep them "incrementally backed up" as time goes by.

    Trying to keep a "running backup" while "merging" the contents of the drives each time can be done, but might be more trouble than it's worth.

    Easier is better.
  8. MacNoobGuy thread starter macrumors 6502

    Apr 18, 2012
    Also, I only have access to one Mac..
  9. syntax.syntax macrumors member

    Jan 19, 2014
    I was thinking of doing the samething backup to a usb drive:)
  10. MacNoobGuy thread starter macrumors 6502

    Apr 18, 2012
    What do you mean?

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