Time Machine not backing up certain changes in file name, format?

Discussion in 'OS X Mountain Lion (10.8)' started by ramparts, Oct 1, 2013.

  1. ramparts macrumors regular

    Jun 11, 2008
    I'm running Mountain Lion on a late 2012 MacBook Pro with Retina.

    I have an external drive I use for extra storage, as well as one I use for Time Machine backups of both my MacBook HD and the storage drive.

    Recently I had to reformat the storage drive and restore from the Time Machine backup. I was surprised to find that some changes I'd made had never been backed up. The two I noticed were:

    • In August I converted a couple thousand video files, over a few dozen folders, from AVI to MP4. While the Time Machine backup reflected this for some folders, in other folders I found the original AVI files instead. (My last backup was a few weeks after I converted them.)
    • In one folder I'd renamed all of the files (a few dozen video files), a few months ago. In Time Machine, they had the original file names. (These were not videos I ever converted.)

    This has got me worried that Time Machine isn't doing the most complete backup. So I have two questions:

    1. Is this expected behavior for Time Machine, and
    2. If so, how do I go about forcing certain changes (like these) to be backed up?
  2. benwiggy, Oct 1, 2013
    Last edited: Oct 1, 2013

    benwiggy macrumors 68020

    Jun 15, 2012
    TM doesn't work optimally if you leave it a long time between backups.

    That having been said, are you viewing TM's backup in the TM app, or the Finder?

    There are utilities for seeing what TM backed up in a particular snapshot, but I don't think you can force TM to backup a certain file --- except by modifying the file.

Share This Page