New MBP ejects my external hdd during backup

Discussion in 'MacBook Pro' started by Rob9874, Mar 14, 2011.

  1. Rob9874 macrumors 6502

    Joined:
    Jul 19, 2010
    #1
    Searched this forum as well as Google about my issue, and found a 17-page thread on the Apple support forums, with no solution. Few instances on here.

    I bought my new 15" MBP recently, and performed a successful TM backup. After installing some apps, I tried backing up again, but the external hard drive ejects during backup. I get an error message saying that the backup failed, and that next time I should properly eject before disconnecting. Cable is not touched the entire time, even tried a few different cables. It's a 500GB Seagate FreeAgent Go, USB-powered.

    I'm going to try repairing the hdd tonight. I thought about replacing it, but from what I read on the Apple forum, it seems to be a widespread issue. Has anyone heard of this issue, and maybe a solution?
     
  2. firegoldlynx macrumors newbie

    firegoldlynx

    Joined:
    Mar 1, 2011
    #2
    It just happened to me but I was thinking it was the external enclosure / hard drive. I was going to try it on another one to see if it fails again.
     
  3. Rob9874 thread starter macrumors 6502

    Joined:
    Jul 19, 2010
    #3
    I read more, and it seems the problem might be related to the USB power management. I'm going to try using a powered USB hub tonight and I'll report back.
     
  4. firegoldlynx macrumors newbie

    firegoldlynx

    Joined:
    Mar 1, 2011
    #4
    yeah that fixed it, usb external self powered backed up 36gb in just under an hour
     
  5. mulo macrumors 68020

    mulo

    Joined:
    Aug 22, 2010
    Location:
    Behind you
    #5
    this happened to me numerous times. i tried esata, firewire and usb, same result.
     
  6. Rob9874, Mar 14, 2011
    Last edited: Mar 14, 2011

    Rob9874 thread starter macrumors 6502

    Joined:
    Jul 19, 2010
    #6
    Nope, the powered USB hub didn't help anything. Still failed at the same point - after 95GB backed up.

    Update: Deleted 12GB of crap I downloaded, and it backed up fine. Not sure if it didn't like those files, or if my 500GB hdd has a problem backing up more than 95GB. I'll find out soon enough.
     

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