What went wrong with my Time Machine backups?

Discussion in 'OS X El Capitan (10.11)' started by Reimer, Aug 15, 2016.

  1. Reimer macrumors regular

    Reimer

    Joined:
    Sep 15, 2006
    #1
    I've had Time Machine enabled for the past couple of years. Thankfully, I've only really had to depend on it a couple of times but nothing major. It was set to back up everything. The only exclusion I had set was the Bootcamp partition.

    Due to an incident, I decided tonight to wipe my Macintosh HD partition using Disk Utility and restore from my Time Machine backup which was on a 1TB external USB hard drive.

    To my surprise, the oldest backup available was from July 1, 2016. Only a bit over a month old. I could swear I've had backups much older previously. Okay, no problem I thought. I only need the most recent back up anyway.

    I restore only to find out my "Application Support" folder, for some reason, hasn't been backed up since July 1st. But the rest of the Library folder was fine.

    Anyway, I just thought this has been odd. Thankfully, the July 1st backup wasn't too old and I didn't lose much at all. Otherwise, I would have lost my browser settings, bookmarks, etc. And yes, I take responsibility for not being more diligent with my back ups and should have checked before deciding to format. I just thought this was weird behavior from Time Machine.
     
  2. george_i, Aug 15, 2016
    Last edited: Aug 15, 2016

    george_i macrumors newbie

    george_i

    Joined:
    May 31, 2015
    Location:
    Athens-Greece
    #2
    I suggest you try a full Time Machine reset. Go /Macintosh HD > Library > Preferences and move to the trash the file com.apple.TimeMachine.plist (you will be asked for your password), that is probably damaged.

    Connect the Time Machine disk and restart > Use as Backup Disk. A new full backup will be taken and will be added to the previous ones. The preference file will be recreated.
     
  3. KALLT macrumors 601

    Joined:
    Sep 23, 2008
    #3
    Have you verified the Time Machine partition with Disk Utility?
     
  4. Reimer thread starter macrumors regular

    Reimer

    Joined:
    Sep 15, 2006
    #4
    Thanks. I ended up doing this. Hopefully, it'll prevent future issues.

    Yup. Doesn't seem like the drive itself has any issues.
     
  5. MacForScience macrumors 6502

    MacForScience

    Joined:
    Sep 7, 2010
    Location:
    USA
    #5
    You should check the Time Machine drive with something like SMART Utility. Disk Utility is useless at catching drive failures. I have seen it miss drives with more than 1000 bad sectors on many occasions. Also Disk Warrior would not be a bad idea.
     

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