Frequent message that time machine disk not properly ejected

I am using a 750 GB USB HDD for Time Machine backups.  I am getting frequent pop up message stating that the external drive was not properly ejected when in fact it wasn't ejected at all - on 24/7.  Backups are halted until I click the OK button on the pop up.  This seems to happen when I get back on after the machine wakes up.  I had the same problem with my 2007 iMac (which this machine replaced) and I googled the problem and found that many had the same issue, but couldn't find a solution.

Thanks for the suggestion, Kappy. Indeed my Energy Saver preferences were set to sleep the Hard Drive whenever possible. I just disabled that. My TM drive has not been kicked out since, but I'll know better in a few days if the problem has been completely solved.
Fingers crossed.

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  • Disk not properly ejected

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    whatdoIneedanalaisfor wrote:
    I have an external drive connected by USB and running as a backup under Time Machine.
    Every time my iMac goes into Sleep mode it immediately comes up with a system error message 'The Disk was not properly ejected....'
    There was an update the other day, for some Macs having troubles with external drives, that might apply here: http://support.apple.com/kb/DL947 If you haven't installed it, give it a try.
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  • Time Machine disk refuses to eject.

    My TM disk won't eject.
    I have it partitioned into "backup" and "clone". clone ejects fine, backup doesn't. It is, apparently, in use.
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    I have the same problem with a partitioned FireWire800 disk (one partition for Time Machine, another for data transfer). Here's my solution:
    1. Start the *Disk Utility*.
    2. In the *Activity Monitor* quit Finder (works for me without "Force .." option).
    3. Eject the "Time Machine" disk through *Disk Utility*.
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    oliver

  • Time machine causes error message " Disk not properly ejected" with USB backup drive

    I am using iMac OS X Lion and Time Machine causes the error message with a WD 1.5 TB drive in aThermaltake dock, USB.  every time I wake up the computer....  Ejection of Time Machine and shut it down and turn opp power to drive causes the error message problem to disappear.   What is the solutin?

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  • Time Machine disk not mounting after sleep

    Greetings,
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    Mark
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    Greetings,
    intelligenceresigned wrote:
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    High Speed device @ 3 (0xFA400000): ............................................. HP Color LaserJet 2605dn (did not respond to inquiry - 0xe0004051, might be Suspended)
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    Mark
    P.S. To save questions: I've tried all the easy stuff: Switched cables, swapped out the hub I have on one of the ports, tried different devices in the ports (so far an HP printer, Iomega external disk, iPod Touch, and Sony usb flash drive). Nothing resolved the issue. My keyboard and mouse are connected to a 2.0 High Speed hub. I've tried using another hub, but it didn't make any difference.

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