Start Time Machine From Scratch

Discussion in 'macOS' started by iAlexG, Sep 26, 2009.

  1. iAlexG macrumors 6502a

    Jun 15, 2009
    Over the past week i have been having big problems with my Time Machine backup drive. My backup drive is an Iomega Helium 500GB partioned as HFS+ Journaled.

    I usually backup every two days so i plugged into my macbook pro on wednesday night. I left it for about 15 minutes and came back expecting the backup to be done. Instead I found it was deleting old backups? I thought this was odd as the drive had 150 or so GB free and i only had a few for songs and documents since my last backup on monday. After another 15 minutes i returned to find it was backing up 120GB!!!! I had no idea where it had come up with that insane amount of data. so i checked my mac's hard drive space to find i had 236GB free just like it has been around that for a few weeks. I let it back up and unplugged it later that night. I forgot to backup on friday so i plugged it in this morning. It was deleting old backups again and backing up a further 140GB!!! What the hell is going on???
    I have now come to the conclusion that i should wipe the drive and start again.

    How can I do this?
  2. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    Erase your TM drive in Disk Utility and then set it as the TM drive again from System Preferences.
  3. littleb2005 macrumors member

    May 27, 2007

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