MacPro Time Machine suddenly writing local backups. Why?

Discussion in 'Mac Pro' started by minifridge1138, Nov 13, 2017.

  1. minifridge1138 macrumors 6502a

    Joined:
    Jun 26, 2010
    #1
    Hello all,

    My time machine disk (a separate drive in its own bay) was getting full so I deleted some backups I don’t need.

    Now, it has decided to only write local backups and it’s filling my boot drive.

    It seems Apple got rid of ‘tmutil disablelocal’.

    When I turn time machine off it deletes the files and everything’s fine. But as soon as I turn it on my disk starts to get full again.

    Anyone have any ideas?
     
  2. adam9c1 macrumors 65816

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #2
    without diving further, perhaps delete the TM drive, and start again?
    TM service will write to the root drive if it can't locate the TM drive.
     
  3. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #3
    How you “remove some old back manually”? Sounds like you damaged the original image file, which makes TM cannot “continue” the backup.

    TM will automatically remove some old backup, better not to manage it manually.
     
  4. bist macrumors newbie

    Joined:
    Jun 13, 2013
    #4
    Time machine is now doing local snapshots on the boot drive.
    - Local snapshot can no more be disabled.
    - The only "fix" I've found is to purge all snapshots on a regular basis with "sudo tmutil thinlocalsnapshots / 999999999 4"

    The last 2 parameters are :
    - How much space do you want (In bytes)
    - Urgency (1-4)
     
  5. minifridge1138 thread starter macrumors 6502a

    Joined:
    Jun 26, 2010
    #5
    I went into time machine, selected some folders whose contents I don’t care about, and selected “delete all backups” of those locations.
     
  6. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #6
    That sounds like the correct method. And if you right click the menu bar icon to start a back up. What will it shows? Preparing? Cleaning? Or can’t find the disk?
     
  7. minifridge1138 thread starter macrumors 6502a

    Joined:
    Jun 26, 2010
    #7
    I got impatient and decided to reformat my Time Machine drive and start over. 17 hours later and everything's working as it should. Annoying, but not the end of the world.
     

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