Problem with External USB hard drive

Discussion in 'macOS' started by sziehr, Aug 17, 2009.

  1. sziehr macrumors 6502a

    Jun 11, 2009
    Macbook pro 13'
    running 10.5.8
    has intermittent issues with usb 2.0 mass storage drives but not jump drives.

    Here is the issue, my gf just got a brand new mac book pro 13'. This is great for her no more asking to use my unibody macbook. She plugs in the drive i have used for a very long time with my mac my pac etc with not a hint of issue. The drive shows up copy's stuff off ok. However when it came time to return the data back to the drive it gets about 10% through and just hangs.
    Here is what i have done
    I first thought ok might need a re-boot
    no luck fixing it
    Then i went with the ok i will check her disk for issues. This is a 3 day old mac book by the way. I found random permissions errors with quick time which has never been run.
    After the fix the issue goes away for that boot.
    The issues seems to come back after a re-boot or so.

    I go ok enough of this i format the mac with the system disk,
    then i update to the latest updates from apple.

    plug in the drive and still having issues.
    Run the permissions repair same issues exactly format to format.
    I have also run the deep test off the system disk the machine checks out through that so i have ruled out ram on her system as a possible culprit.

    I am at a loss on this machine

    I have gone so far as to format the external drive replace the data from my network server and try that. Still no luck. On my box there is no issue it time machines great it copy's data like a usb 2.0 drive should.
  2. PurrBall macrumors 65816


    Oct 25, 2007
  3. sziehr thread starter macrumors 6502a

    Jun 11, 2009
    I have.
    The intresting thing is when it times out eventually it says itunes files are in use and can not be copied even though itunes has never been launched on this boot.
    I have the logs showing where i have run the permissions fix twice getting the same results.
    I can post that up if needed
  4. bigdaddyp macrumors regular

    Aug 19, 2008
  5. sziehr thread starter macrumors 6502a

    Jun 11, 2009
    The external drive is a seagate non-power usb drive. The drive has a wall wort.
  6. bigdaddyp macrumors regular

    Aug 19, 2008
    I have a 13" "limited edition" unibody macbook (purchased 15 days before the last update). I have a simpletech that works great with my mini and mac but cause all kinds of fits with the macbook. It originally would mount but was slow. So slow that it made Usb 1.0 look fast. Maybe one in 10 tries I could get it run at full speed, and now it wont mount at all on the mb.

    I believe Apple has had some problems in the past with usb mass storage devices and the fix was to try a powered usb hub. Sorry the memory is a little hazy on the details. Try a powered usb hub, even though your drive is self powered maybe this will help. It did work for me long enough to transfer what I needed off the drive.

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