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  1. #1

    greyhound rick's Avatar
    Member Since
    Mar 15, 2010
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    Phoenix, Arizona
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    2016 MacBook (m5), 2013 macbook pro retina 15", 2009 MBP non retina 13", 2014 21" iMac
    Question ?:Re: Time Machine concept
    Hello everyone,

    I am about to start using Time Machine and believe i understand how to get it to work.

    What I'm confused about is what is being backed up each time......

    Lets say i have 100 large RAW photo files that I'm going to have included in my backup initially and perform that backup.

    If i were to do nothing else on my MacBook Pro except add an additional 5 RAW photo files and then performed another Time Machine back up, would Time Machine create ANOTHER copy of my original 100 photo files PLUS the 5 new ones, thus giving me 205 files on my computer or would it just add the 5 new files and only use up enough space on my external hard drive for 105 files (not duplicating the first 100)?

    Sorry I'm not understanding this and appreciate your help very much as always!

    My best to all,

    rick

  2. #2

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
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    No it does not duplicate those files. The files themselves are backed up the first time. In subsequent backups a link is made to the file's location in the first backup. When you add files the new files are backed up along with older files that have been changed.
    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  3. #3

    greyhound rick's Avatar
    Member Since
    Mar 15, 2010
    Location
    Phoenix, Arizona
    Posts
    118
    Specs:
    2016 MacBook (m5), 2013 macbook pro retina 15", 2009 MBP non retina 13", 2014 21" iMac
    Quote Originally Posted by Slydude View Post
    No it does not duplicate those files. The files themselves are backed up the first time. In subsequent backups a link is made to the file's location in the first backup. When you add files the new files are backed up along with older files that have been changed.
    Thanks so much Slydude!! Really appreciate the great explanation!! :-)

  4. #4

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    10,622
    Specs:
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    No problem. It can be a bit confusing sometimes.
    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

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