? VERY long Time Machine back-up ?

Discussion in 'Mac Basics and Help' started by zoltan_egg, Jan 19, 2017.

  1. zoltan_egg macrumors newbie

    Joined:
    Jul 14, 2016
    #1
    Hi guys,

    How long should 600 GB of data take to backup on an external hard drive?
    My Time Machine says 22h, encrypted!

    Is this normal, or maybe my external hard drive is somehow slow?
    It's a new Seagate Backup Plus Ultra Slim 2Tb, USB 3.0.

    Curious to hear from you.
    I have a 2012 Macbook Pro with a standard 500 GB HD Hard Drive and 250 GB of a new SSD.
     
  2. chscag macrumors 68020

    chscag

    Joined:
    Feb 17, 2008
    Location:
    Fort Worth, Texas
    #2
    Normal. That's a lot of data to backup via USB 3.0. The first backup that Time Machine makes always takes longer as it gathers the data and prepares the backup. Subsequent backups should be faster.
     
  3. hfg macrumors 68040

    hfg

    Joined:
    Dec 1, 2006
    Location:
    Cedar Rapids, IA. USA
    #3
    Yeah ... that sounds about right for the first backup. With normal usage, subsequent update backups should only take a minute or two.

    Note: if you have a virtual Windows installation with Parallels or VMware, that will add considerably to each update since the "virtual" file is probably around 30 GB and will indicate an update any time Windows has been run.
     
  4. zoltan_egg thread starter macrumors newbie

    Joined:
    Jul 14, 2016
    #4
    Thanks a lot guys. Was worried that the drive I bought is not suitable for backup.
    Do you happen to know if I can backup two Macs onto one external hard drive?
     
  5. elf69 macrumors 68020

    elf69

    Joined:
    Jun 2, 2016
    Location:
    Cornwall UK
    #5
    Yeah sound right, took 2 days to backup my system on usb 2.0 was about 300GB!
     
  6. zoltan_egg thread starter macrumors newbie

    Joined:
    Jul 14, 2016
    #6
    Did you do it in one go, or paused in the meantime?
     
  7. elf69 macrumors 68020

    elf69

    Joined:
    Jun 2, 2016
    Location:
    Cornwall UK
  8. hfg macrumors 68040

    hfg

    Joined:
    Dec 1, 2006
    Location:
    Cedar Rapids, IA. USA
    #8
    No problem ... TimeMachine will create a separate folder for each computer name and enter the backup sessions under the proper folder for whatever computer you have it attached.
     
  9. MRxROBOT macrumors 6502

    MRxROBOT

    Joined:
    Apr 14, 2016
    Location:
    1011100110
    #9
    I also find that Time Machine takes too long on the initial backups. This is partly because the OS puts a low priority on the task. However there is a way to temporarily resolve this (it will reset when you restart). I only use this on the initial backup as i don't find it as useful on the smaller incremental backups after.

    Open Terminal and enter,

    The above will not let Time Machine enter low priority and in turn really speeds things up.
     

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