Wil Time Machine overwrite my existing back up?

Discussion in 'iMac' started by czarthp, May 9, 2015.

  1. czarthp macrumors newbie

    Joined:
    Jun 7, 2008
    Location:
    Nashville, TN
    #1
    I had my hard drive wiped and re installed Mavericks back on. I have a time machine back up for what was on my drive before it was wiped. If I start a new back up will it overwrite what it currently on my time machine back up drive?
     
  2. Ledgem macrumors 65816

    Ledgem

    Joined:
    Jan 18, 2008
    Location:
    Hawaii, USA
    #2
    Usually what happens is that Time Machine prompts you for what to do, giving you two choices. One is to "inherit" the backups that are already on the drive, which will grant you full access to the backups and will cause Time Machine to continue incrementing off of them. Choosing to inherit the backups prevents the original computer from being able to use the backups, which in your case won't be an issue.

    The second option is to leave the backups intact and start new backups on the drive. You won't be able to access those other backups and Time Machine won't "prune" them as disk space is used on the drive, but Time Machine won't wipe them, either. It does this under the expectation that the drive might be used by multiple computers for Time Machine backups.
     
  3. czarthp thread starter macrumors newbie

    Joined:
    Jun 7, 2008
    Location:
    Nashville, TN
    #3
    so how would I access the previous back ups if needed?
     
  4. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #4
    You should be able to find them in the Backups.backupdb folder on your backup drive.
     

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