Clone Time Machine HDD to allow for two independent TM HDDs?

Discussion in 'OS X Mavericks (10.9)' started by CliftonHighgrov, Dec 23, 2015.

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  1. CliftonHighgrov macrumors regular

    CliftonHighgrov

    Joined:
    Oct 1, 2014
    Location:
    United Kingdom
    #1
    I currently have two independent TM backups. One started off as the clone of the other. I did it such a way that Time Machine thinks that they are the same TM backup when I plug in either drive, which is not what I intended. This means if I plug in TM Drive A, perform a backup, dismount and unplug it and then plug in TM Drive B, TM tells me the last backup for that drive was time of the last backup I made to TM Drive A.

    I'm pretty confident I read somewhere that it's possible to have TM recognise each TM Drive as a unique TM backup, and therefore properly report the lapsed time since each backup correctly for either drive.

    I'm about to upgrade TM Drive B, which will entail cloning it to a new USB 3 HDD. How do I do this and have TM recognise it as a unique TM backup and thus report the correct lapsed time in future?
     
  2. MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #2
    You start a new TM volume not clone the existing one, no other way to have them different after all. A clone is just that a clone of the previous drive so will always show up as identical. When you plug in new drive go into TM preferences and add another volume for its backup it will ask if you want to use both say yes let it do its thing and you will have two different backups from that point on showing the correct time lapsed on both.
     
  3. CliftonHighgrov thread starter macrumors regular

    CliftonHighgrov

    Joined:
    Oct 1, 2014
    Location:
    United Kingdom
    #3
    Thanks for replying. I may just stick with the current set-up then. I've had too many experiences with the sudden TM corruption where you have to start with a fresh backup.
     
  4. MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #4
    As have I it is an unreliable method of backup, personally I have taken to keeping several clones of my OS laying around much better IMHO.
     

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