Time Machine, How to check if data on external drive is free of any failures

Discussion in 'macOS' started by Mac2013orlater, May 18, 2014.

  1. Mac2013orlater macrumors member

    Joined:
    Feb 2, 2014
    #1
    Time Machine, How to check if data on external drive is free of any failures
    Time Machine along with external drive is in use.
    How to check if all data collected by TM on that drive is free of any errors
    (i.e. file system errors, bad sectors, others)?
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

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    Jan 23, 2005
    Location:
    California
    #2
    There are a couple things you can check, but the ultimate test is to try and restore a couple folders to another location just to make sure everything is there.

    But as a check you can:

    1. Open Console app and type "backup" in the filter bar at the top then scroll through the logs for the last few Time Machine (TM) backups. If TM is hanging on a file or folder it will be listed in that log as an error.

    2. Use Disk Utility to do a verify disk on the external TM disk.

    3. Option click the TM menu icon and select "verify backups".
     
  3. adnbek macrumors 65816

    adnbek

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    Oct 22, 2011
    Location:
    Montreal, Quebec
    #3
    To add to what Weasleboy said, #2 is if the external drive is wired to your computer, #3 is only for wireless connections. (it'll be greyed out for wired)
     
  4. Mac2013orlater thread starter macrumors member

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    Feb 2, 2014
    #4
    Actually, it is TM on a NAS. Pardon for not been accurate enough till now.
    So the console seems to be the only option.
     
  5. Weaselboy Moderator

    Weaselboy

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    #5
    Actually... verify backups is there on a wired connection. I just checked and it is there on my system connected via ethernet.
     
  6. Mac2013orlater thread starter macrumors member

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    Feb 2, 2014
    #6
    If you mean the menu as on attached screen shot, there is unfortunately no
    such option as for Mavericks 10.9.3
     

    Attached Files:

  7. blueroom macrumors 603

    blueroom

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    Feb 15, 2009
    Location:
    Toronto, Canada
    #7
    Which NAS?
     
  8. adnbek macrumors 65816

    adnbek

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    Oct 22, 2011
    Location:
    Montreal, Quebec
    #8
    I guess network connections have 'em. USB does not.

    You have to hold the option key, then click on the TM menu icon.
     
  9. satcomer macrumors 603

    satcomer

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    Feb 19, 2008
    Location:
    The Finger Lakes Region
    #9
    If the the NAS has a Time Machine Server sent that up in the NAS. If the NAS doesn't have a Time Machine Server the follow the blog site Configuring OS X Mountain Lion Time Machine to Work With CIFS (SMB) Share (Don't worry it still works in 10.9.x).
     
  10. Weaselboy Moderator

    Weaselboy

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    #10
    OP >> Just my opinion, but I would not trust my backups to the unsupported solution linked above. It may work for now, but often results in corrupted backups. Time Machine is designed to work with the Apple Filing Protocol (AFP), and using it with CIFS/SMB will not be reliable. Here is the Apple support page on the topic. Here is a long and boring technical explanation of why AFP is required.
     
  11. Mac2013orlater thread starter macrumors member

    Joined:
    Feb 2, 2014
    #11
    Solutions offered by Apple do not meet our requirements.
    Therefore the TM on NAS by 3rd party in our case.
    The NAS supports and has enabled the AFP, thus I guess the TM runs over AFP.
     

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