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Moving already backed-up data to different drive

179 Views 5 Replies Latest reply: Mar 5, 2013 3:13 PM by joelq RSS
joelq Level 1 Level 1 (0 points)
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Mar 2, 2013 8:55 AM

Hi all -


I have about 700gb of videos that I want to move off my iMac's internal hard drive onto an external drive. The videos have already been backed up with Time Machine.


After I move the videos to the external drive, I want to continue backups on that data, but don't want to create a duplicate backup of the data that's already there. What's the best way to do this? I'd prefer not deleting the backups so I can keep the history, but not sure I can avoid that.


The only thing I can think of is to move the videos to the external drive, then create a link from the original location to the new location on the external drive so the original directory structure is intact. Will Time Machine see that as being in a new location and still do a full backup when it first sees it?



  • Klaus1 Level 8 Level 8 (43,415 points)
    Currently Being Moderated
    Mar 5, 2013 9:21 AM (in response to joelq)

    The way I do this is, as you say, to have all the videos on an external drive, placed there using SynchTwoFolders:



    Then place an alias of each video in your iMovie or iTunes folder so that you can play them any time via DVD Player or VLC (as long, of course, as your external drive is connected to your Mac!).


    Now you can delete the originals from your internal hard drive, which means that they will no longer be backed up by Time Machine - which leaves you with one copy only, so you should consider a second (third?) external hard drive where you can keep an extra copy of movies, photos and music, kept up to date with SynchTwoFolders.

  • Klaus1 Level 8 Level 8 (43,415 points)
    Currently Being Moderated
    Mar 5, 2013 2:56 PM (in response to joelq)

    The folders don't have to have identical names. I use SynchTwoFolders once or twice a week to update, for example, my photos (16,000+ of them, going back to 1850) to two different external hard drives. Only takes a minute or so for it to update the folders as it doesn't do a fresh copy every time. Ditto with home movies.


    BTW, I do not use Time Machine.


    About once a fortnight I use SuperDuper to clone my entire hard drive to different partitions on those two external hard drives.


    As far as I aware, if you have deleted files on your internal drive, time machine will not (cannot!) copy those, so they are not backed up by that means.


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