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  1. #1
    External HDDs working furiously, but did not task them with anything?...
    Was just curious if anybody knew why my external HDDs would be chattering away on "some task" when I haven't given them anything to do in 12 hours.
    The only thing I can think of is that Spotlight is Indexing them, but other than that can't think of a reason why some of them would be sounding like I'm transferring Terabytes of information, when, as I said, I haven't given them anything to do in at least 12 hours.

  2. #2
    External HDDs working furiously, but did not task them with anything?...
    MacInWin's Avatar
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    Could be indexing. I would suggest you open Activity Monitor and look at the Disk tab to see what process is either writing or reading lots of data. You can sort the bytes written and read columns by clicking on the header for the column to get the most busy ones to the top.
    Jake

  3. #3
    External HDDs working furiously, but did not task them with anything?...
    IWT's Avatar
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    Looking at this from a different angle; if you don't want or need Spotlight to Index your External Hard Drive (EHD)s, you can stop the process quite easily.

    System Preferences > Spotlight > Privacy > Then either Drag the EHD into the Privacy window - or click on the + sign and navigate to the attached EHD through Finder and add it that way.

    Of course, you may have perfectly legitimate reasons for wanting Spotlight to Index the EHDs.

    Just a thought.

    Ian
    Ian

  4. #4
    External HDDs working furiously, but did not task them with anything?...
    iggibar's Avatar
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    How are the HDDs being used? Hard to answer the question without knowing what they are being used for.
    3.0GHz 10x Mac Pro 6.13.46GHz 6x Mac Pro 5.12.66GHz 4x Mac Pro 4.12.2GHz i7 15" MBP 15.12.3GHz i7 15" MBP 11.32.8GHz i7 13" MBP 11.12.66Ghz i7 15"MBP 6.22.4GHz 15" MBP 5.12.4GHz 13" MBP 7.1

  5. #5
    External HDDs working furiously, but did not task them with anything?...
    pigoo3's Avatar
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    Any chance the hard drives are doing back ups?

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  6. #6
    Quote Originally Posted by iggibar View Post
    How are the HDDs being used? Hard to answer the question without knowing what they are being used for.
    I have one for "Time Machine" backups, but don't have it set up to do that automatically (but, rather, do that manually when I feel like it, so that one is out (in terms of having a legitimate "process" it might be working on)).

    And I have 2 others that I occasionally move files to from my iMac as secondary backups (also, manually).

    While we're on the subject, maybe someone can also explain this to me....
    Sometimes my EHD's will spin up in the middle the night when I, and my computer, are asleep...I haven't tasked them with anything, the computer itself isn't doing any updating...and mind you, this sometimes happens multiple times an hour, for hours on end...the EHD will spin up do some clattering...light up my room with whatever HDD cyborg light the manufacturer has put on the front of it to indicate to me that it is working...and then spin down and go to sleep after about 5 minutes or so.
    Any idea why this happens, and so often?

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