Re: time machine -disk repair failed

Hi
repairing disk keeps coming up with
Error: Could not unmount disk

I did a web search about this error message,  and it was suggested 
that I eject the disk from Finder

http://hintsforums.macworld.com/archive/index.php/t-91030.html

which I did then
started repair

got this message
Verify and Repair volume "disk1s3"
Volume repair complete.
Updating boot support partitions for the volume as required.
Error: Disk Utility can't repair this disk. Back up as many of your 
files as possible, reformat the disk, and restore your backed-up 
files.

got same message 4 x times
Hard disk name has change to disk1s3 ( I had named it TM 465)

given that this disk has only been used for Time Machine - what could 
be causing a corruption?

Have I stuffed it up?

thanks

>Hi Gary,
>
>If you get the following error message: ERROR: Could not unmount disk.
>Close all applications except Disk Utility, switch Time Machine off, 
>and try again.
>
>Don't click Verify, just run Repair and hope Dick Utility can repair 
>the Time Machine partition.
>Run DU Reapair until you don't receive any errors, it might have to 
>run it a few times.
>
>Cheers,
>Ronni
>On 15/02/2012, at 12:19 PM, gary dorn wrote:
>
>>>  If the drives not showing in Finder, I'd try shutting the computer
>>>  down and checking the drives connections. Could have a bit of dust
>>>  between connectors and making it show/not show.
>>>
>>>  Pull it out, check and reseat it. Then power up again and see how it goes.
>>
>>
>>  Hi
>>  as Suggested by Daniel
>>  I removed drive, then reset it.
>>
>>  eventually showed up in Finder,
>>  List of folders and files showed dated from  March 2012 to Feb 2nd 2012
>>
>>  As suggested by Rhonda
>>  I turned Time Machine off
>>  then ran  Disk utility,
>>  Verifying volume "tm 465"
>>  Performing live verification.
>>  Checking Journaled HFS Plus volume.
>>  Checking extents overflow file.
>>  Checking catalog file.
>>  Invalid node structure
>>  The volume tm 465 was found corrupt and needs to be repaired.
>>  Error: This disk needs to be repaired. Click Repair Disk.
>>
>>  so I ran  repair - comes up with
>>      Verify and Repair volume "tm 465"
>>      Error: Could not unmount disk
>>
>>  what does that mean?
>>
>>>  Kind regards
>>>  Daniel
>>>
>>>  Sent from my iPhone 4s
>>>
>>>  ---
>>>  Daniel Kerr
>>>  MacWizardry
>>>
>>>  Phone: 0414 795 960
>>>  Email: <[EMAIL PROTECTED]>
>>>  Web: <http://www.macwizardry.com.au>
>>>
>>>  ** For Everything Apple **
>>>
>>>  On 13/02/2012, at 5:50 PM, gary dorn <[EMAIL PROTECTED]> wrote:
>>>
>>>>>  Hi Gary,
>>>>>
>>>>>  In System Preferences > Time Machine - is Name:  & Select Disk: correct?
>>>>>  If you have put the drive in another position
>>>>>  you might need to 'Select Disk' again for ? to
>>>>>  know where it is located.
>>>>>  Is the Partition mounting and showing in Disk Utility?
>>>>
>>>>
>>>>
>>>>  nope not showing
>>>>  nor  in Finder - was earlier today before I
>>>>  updated to OS 10.6.8 a little while ago! from
>>>>  10.6.6
>>>>
>>>>  If I now go Enter Time Machine  it comes up with
>>>>  " your time machine backup disk cant be found
>>>>         cancel        set up time machine
>>>>
>>>>  oh bugger.
>>>>
>>>>>
>>>>>  Try to Repair the Time Machine Disk:
>>>>>  1. Turn OFF Time Machine
>>>>>  2. Open Disk Utility
>>>>>  3. Select the Time Machine Partition (indented
>>>>>  in left side panel) it will be named something
>>>>>  similar to 'Time Machine Backups'
>>>>>  4. Make sure 'First Aid' button is selected.
>>>>>  5. Click 'Repair Disk'
>>>>>
>>>>>  It DU does repair anything, run Disk Repair again until no errors appear.
>>>>>  Post back what errors you receive and if Dick Utility can 
>>>>>repair the ? disk
>>>>>
>>>>>  Cheers,
>>>>>  Ronni
>>>>>
>>>>>  On 13/02/2012, at 4:26 PM, gary dorn wrote:
>>>>>
>>>>>>>  Hi Gary,
>>>>>>>
>>>>>>>  More information would help give correct instructions.
>>>>>>>  Are you receiving an error message when Time Machine tries to backup?
>>>>>>>  Or is it staying in "Preparing for backup" for a very long time?
>>>>>>>  Is ? finding the backup partition?
>>>>>>
>>>>>>  Hi Ronni
>>>>>>  is says bugger all
>  >>>>>
>>>>>>  "Unable to complete backup. An error occurred
>>>>>>  while creating the backup folder.
>>>>>>
>>>>>>  Latest successful backup: 2/02/12 at 9:01 AM"
>>>>>>
>>>>>>  available 22.56 GB of 499.97 GB
>>>>>>  oldest backup: --
>>>>>>  latest backup: Failed i
>>>>>>
>>>>>>  macpro 1,1 2 x 2.66GHz
>>>>>>  OS 10.6.8
>>>>>>
>>>>>>
>>>>>>  thanks
>>>>>>
>>>>>>
>>>>>>>  Hi Ronni,
>>>>>>>  Post back with more information and I'll give
>>>>>>>  you suggestions what can be done.
>>>>>>>
>>>>>>>  Cheers,
>>>>>>>  Ronni
>>>>>>>
>>>>>>>  On 13/02/2012, at 2:33 PM, gary dorn wrote:
>>>>>>>
>>>>>>>>  howdy
>>>>>>>>
>>>>>>>>  Last week  or the week before, during the hot days, my macPros' fans
>>>>>>>>  started up  and I was getting some flaky performance.
>>>>>>>>
>>>>>>>>  So I shut it down.  pulled it apart, removed ram boards,  and 3 x  HD
>>>>>>>>  trays and vacuumed all the dust out from the inside , internal fans
>>>>>>>>  etc and put it back together, trays in reinstalled in number order.
>>>>>>>>  http://manuals.info.apple.com/en_US/Mac_Pro_Early_2008.pdf
>>>>>>>>
>>>>>>>>
>>>>>>>>  Now Time machine ( one of  internal HD)  fails at doing its
>>>>>>>>  backup thing.
>>>>>>>>
>>>>>>>>  Would  putting the Time Machine HD back in a different tray position
>>>>>>>>  affect this? maybe I'v put it back in the wrong position.
>>>>>>>>
>>>>>>>>  Is there a certain order the HD trays ought to be installed. The User
>>>>>>>>  guides doesn't say anything about a preferred order
>>>>>>>>
>>>>>>>>  thanks for any advice.
>
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