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Time Machine not detecting Lacie HD

403 Views 14 Replies Latest reply: Oct 12, 2012 7:27 PM by Bob Timmons RSS
tseronis Level 1 Level 1 (0 points)
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Oct 10, 2012 4:24 PM

I am attempting to run Time Machine on my AEBS but when I enter the Time Machine preferences and try to Set Up the HD, my Lacie 1TB HD is not coming up in the menu as an option.

MacBook Pro
  • Bob Timmons Level 9 Level 9 (75,555 points)
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    Oct 10, 2012 4:55 PM (in response to tseronis)

    Check the formatting of the LaCie drive as it must be setup in Mac OS Extended (Journaled) to accept Time Machine backups.

     

    A powered USB hub will likely be required for most drives.....even if they have their own power supply.....because the USB port on the AirPort Exteme is under powered. I happen to have two LaCie drives...and neither one will work with the AirPort Exreme without a powered USB hub.

     

    As you may know, Time Machine Backups to a drive at the USB port are not officially supported by Apple. That may...or may not...be in play here.  Some users seem to be able to make this work while others....like me....have continuous problems when they try this.

     

    If your backups are important to you, you might consider a dual backup strategy in case the backups at the AirPort Exteme port become corrupted.

  • Bob Timmons Level 9 Level 9 (75,555 points)
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    Oct 10, 2012 6:00 PM (in response to tseronis)

    This tells me that the USB port on the AirPort Exteme is really working hard to provide enough power to the hard drive. A $15-20 investment in a powered hub to take the stress off of a borderline power supply in the AEBS might be a good way to protect the $180 that you have in the AEBS.

     

    Your decision, though.

  • Bob Timmons Level 9 Level 9 (75,555 points)
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    Oct 10, 2012 7:35 PM (in response to tseronis)

    For years, I have used a "no name" Dynex powered hub which is sold by Best Buy and probably other retailers. But, there are dozens of brands available. Just grab one. It's plug and play. Make sure that the hub has a separate power supply. You do not want a "passive" hub.

  • Bob Timmons Level 9 Level 9 (75,555 points)
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    Oct 11, 2012 5:26 AM (in response to tseronis)

    Unfortunately, errors like this may be a preview of things to come if you want to try to continue with the unsupported method of Time Machine backups.

     

    Try #C17 in Time Machine -- Troubleshooting by guru Pondini

     

    http://pondini.org/TM/Troubleshooting.html

  • Bob Timmons Level 9 Level 9 (75,555 points)
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    Oct 11, 2012 5:55 AM (in response to tseronis)

    I use a dual back up strategy.  Time Machine backups from two Macs go to a Time Capsule and each Mac has a drive that is directly connected via FireWire to make a daily "clone" using Carbon Copy Cloner.

  • Bob Timmons Level 9 Level 9 (75,555 points)
    Currently Being Moderated
    Oct 11, 2012 9:47 AM (in response to tseronis)

    Per your earlier post regarding investing in a powered USB hub, my LaCie drive has its own power cord and is plugged into a surge protector.

     

    That being said, do I still need to invest in a powered USB hub?

    I previously stated.....

     

    A powered USB hub will likely be required for most drives.....even if they have their own power supply.....because the USB port on the AirPort Exteme is under powered.

     

    I then stated.....

     

    A $15-20 investment in a powered hub to take the stress off of a borderline power supply in the AEBS might be a good way to protect the $180 that you have in the AEBS.

     

    should I consider returning the AEBS and move up to a Time Capsule?

    If Time Machine backups are important to you, Apple supports backups from Macs to a Time Capsule and also to a hard drive that is connected directly to your Mac via the FireWire or USB connection.

     

    However, the fact that Apple supports these types of setups does not imply that that you will never have any problems.

  • Bob Timmons Level 9 Level 9 (75,555 points)
    Currently Being Moderated
    Oct 12, 2012 7:27 PM (in response to tseronis)
    is it OK if I purchase a non powered hub?

     

    I recommend that you use a powered USB hub.

     

    If you want to try a non-powered hub, that would be your decision.

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