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  1. #1

    Qslim's Avatar
    Member Since
    Jun 14, 2006
    Posts
    31
    External HD not recognized, OSX freezing
    I just noticed that time machine hasn't been backed up in a few days, and the hd icon in finder isn't present. When I open time machine and select 'back up now', I am told that the backup volume cannot be mounted. The hd is connected as normal, the light is on (it's a WD, if it matters), but time machine can't see it and the drive will not show in finder. If it matters at all, twice today I have had my usage pegged past 100% because of 'diskarbitrationd', with three 'mount_hfs' running under it at about 40% each, and both times the system froze and I had to power down manually. I don't have any idea what this means, but thought that it may be relevant. Thanks for reading.

    BTW, i'm running a macbook with osx 10.5

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    47,163
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, El Capitan
    Sounds like your external WD is having problems.

    Open Applications, Utilities, Disk Utility, and highlight the WD. Select First Aid, and do a verify and repair. Report back the results.

    Regards.

  3. #3

    Qslim's Avatar
    Member Since
    Jun 14, 2006
    Posts
    31
    Thanks for the reply. I opened disk utility, and when I select the drive in question, the options to verify and repair are greyed out, so I cannot do either.

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    47,163
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, El Capitan
    Hi again:

    Looks like it's time to replace the WD. When Disk Utility refuses to repair a drive (options not available) it's usually because the drive mechanism itself has failed rendering the drive unreadable.

    Unless the drive has data on it that you badly need, I would replace it. If there is data on it that you must have, post back and we can suggest some software that might work to get your data back.

    Regards.

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