Will Zeroing a HHD with Disc Utility identify bad sectors?

Discussion in 'Mac Basics and Help' started by Droooooj, Dec 15, 2013.

  1. Droooooj macrumors regular

    Joined:
    Oct 19, 2009
    Location:
    London, UK
    #1
    I've bought a 2nd hand USB external HHD.

    The guy said it was mint condition and hardly used, but I wanna check myself if there are any bad sectors.

    I was gonna zero the drive anyway, and I wondered if doing so with Disc Utility would be enough to reveal bad sectors, if there were any to be found?

    Or do I need to check for bad sectors some other way?
     
  2. mfram macrumors 65816

    Joined:
    Jan 23, 2010
    Location:
    San Diego, CA USA
    #2
    Hard drive firmware automatically remaps bad sectors. So you won't really know about them anyway.
     

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