LaCie Backup disk issue with new 5K iMac

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Level 1

8 points

LaCie Backup disk issue with new 5K iMac

I upgraded my 27" 2009 iMac to late 2014 5K iMac (16GB 1600 Mhz DDR3) via using my 2TB LaCie external hard drive. While the changeover appears to be successful I now get a message " Time Machine couldn't complete backup to Lacie. "

"The backup disk needs 711.79 GB for the backup but only 567.06 GB are available. Select a larger backup disk or make the backup smaller by excluding files".

I had no problems before and there is plenty of free storage on the disk.

Can anyone advise what I should do?

iMac, Mac OS X (10.6.2)

Posted on Jul 27, 2015 3:00 PM

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Answer 1

Kappy

Level 10

361,741 points

Jul 27, 2015 3:06 PM in response to ZEBRADICK

Time Machine sees a new computer and wants to make a new backup rather than continuing with the old backup. Either use Disk Utility to erase the Time Machine drive and start from scratch or visit Pondini's Time Machine FAQ for help with getting Time Machine to add to an existing backup.

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Answer 2

ZEBRADICK Author

Level 1

8 points

Jul 27, 2015 3:27 PM in response to Kappy

In disk utility I cannot see Time Machine drive separately listed under Macintosh HD?

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Answer 3

Kappy

Level 10

361,741 points

Jul 27, 2015 3:52 PM in response to ZEBRADICK

Then the drive is not connected to the computer or is not mounting. Check if the power is turned on for the drive. What do you actually see listed in Disk Utility? Take a snapshot and post here.

To post screen shot do this:

Press COMMAND-SHIFT-4 which will change the cursor to crosshairs.
Hold down the mouse button and use the crosshairs to select the part of the screen you wish to capture.
Release the button and the image will be saved to your Desktop.
Click on the Camera icon in the toolbar of the forum message editor.
Drag the image onto the Choose File button and click on the Insert button.

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Answer 4

ZEBRADICK Author

Level 1

8 points

Jul 27, 2015 3:59 PM in response to Kappy

The drive seems to be mounted. See below for snapshot of drive.

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Answer 5

Kappy

Level 10

361,741 points

Jul 27, 2015 4:22 PM in response to ZEBRADICK

I'd like to see the entire Disk Utility window. Because the drive shows as mounted, I do not understand your question. There should be an entry for the drive in the Disk Utility sidebar.