TechTool found a bad block on my drive...

Discussion in 'MacBook Pro' started by rockinrocker, Mar 13, 2014.

  1. rockinrocker macrumors 65816


    Aug 21, 2006
    TechTool found a bad block on my external drive that I use for reading/writing audio files when recording.
    So it's mission critical for sure...

    Does this mean the drive is about to crap out or anything? It is an older drive that's gotten a lot of use in the years that I've had it.

    Or is it not a big deal since it's only one block?

    I ran the test twice and it was the exact same block both times.

  2. sjinsjca macrumors 68020


    Oct 30, 2008
    It could be just a bad block and that'll be the sum of it, but I'd keep an eye on that drive. And back up!!

    Sometimes a bad block isn't discoverable until it's actually used. But, sudden emergence of a bad block can also indicate a drive in the process of dying, and you say this is an older and well-used drive.

    Drives are cheap. Take this as a clue to get a new one. If you find another block going bad on you, run!

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