7 Replies Latest reply: Mar 1, 2010 1:04 PM by Pondini
ak2k Level 1 Level 1
expertise.itunes
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I've been using Time Machine (on Time Capsule) for about a week; with successful backups until today - when I got the following message:

The backup disk image “/Volumes/Data/WinMac.sparsebundle” is already in use.

"WinMac" is my iMac's name.

Any advice?

iMac early 2009, Mac OS X (10.6.1)
Solved by M. Anthony Aiello on Feb 15, 2010 12:04 PM Solved
The proposed "solution" (to unplug/restart the router/disconnect users from the disk) isn't really a solution, though. Rebooting the network every time Time Machine breaks itself is hardly a solution. The whole system is supposed to be worry free; a network reboot is hardly an example of worry free.

The problem is silly and rampant on my home network that servers a collection of laptops; at any given time, someone seems to be seeing this error. If we wait long enough, the problem seems to go away, but in the meantime, people are unable to back up their machines.

My best guess as the cause of this problem is when a laptop is put to sleep in the middle of a time machine backup. Since time machine effectively runs as a background process, this occurrence should not be surprising and should have been handled gracefully by Apple. Except it (apparently) isn't. When the machine is slept during the backup I again guess that lock file is left in the sparse bundle. My attempts to find said lock file have been unfruitful.

I'd sure like to see Apple address this issue in some way.
  • V.K. Level 9 Level 9
    look in finder sidebar. this message indicates that the virtual volume with your TM backups is already mounted. eject it and you should be able to back up. to initiate a backup manually go to TM menu in the menu bar and select "back up now".
  • Morats Level 1 Level 1
    I also has that same thing happen. I'm using the airport extreme and an external HDD connected to that for time machine. I resolved the issue by unplugging both the HDD and router for a few seconds.

    Hope this helps
  • Christopher Brewer Level 1 Level 1
    This fixed it for me as well. The volume was not mounted on my mac...
  • M. Anthony Aiello Level 1 Level 1
    The proposed "solution" (to unplug/restart the router/disconnect users from the disk) isn't really a solution, though. Rebooting the network every time Time Machine breaks itself is hardly a solution. The whole system is supposed to be worry free; a network reboot is hardly an example of worry free.

    The problem is silly and rampant on my home network that servers a collection of laptops; at any given time, someone seems to be seeing this error. If we wait long enough, the problem seems to go away, but in the meantime, people are unable to back up their machines.

    My best guess as the cause of this problem is when a laptop is put to sleep in the middle of a time machine backup. Since time machine effectively runs as a background process, this occurrence should not be surprising and should have been handled gracefully by Apple. Except it (apparently) isn't. When the machine is slept during the backup I again guess that lock file is left in the sparse bundle. My attempts to find said lock file have been unfruitful.

    I'd sure like to see Apple address this issue in some way.
  • Sculler1x Level 1 Level 1
    I've been having the same issue and have been doing the Reboot of my AEBS and Hard Drive. Not an ideal situation! Has anybody made any headway!?
  • BoyHowdyDoo Level 2 Level 2
    Have not tested this but restarting the finder usually helps with stubborn disk images that remain mounted (but not mounted).
  • Pondini Level 8 Level 8
    Sculler1x wrote:
    I've been having the same issue and have been doing the Reboot of my AEBS and Hard Drive. Not an ideal situation! Has anybody made any headway!?


    You need to know that Time Machine backups to a USB drive connected to an Airport are "iffy" and +*not supported by Apple.+* See the Using Time Machine with a USB drive connected to an Airport Extreme *User Tip,* also at the top of this forum.