Time Machine completed a verification... must create new backup??

I just saw a notice on my headless MacMini that "Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you. Click Start New Backup to create a new backup. This will remove your existing backup history. Click "Backup Later" to be reminded tomorrow.
That sounds ominously like it should have said "Time machine encountered an error, and you're going to lose all your history when I start a new backup for you, but you really have no choice other than to delay the pain for a day".
This is a relatively new 2Tb capsule, model A1409, from 9/7/11, which is backing up a Mac Mini (new as of April) and a new MacBook Pro (as of May).
Is there any way not to lose that backup history? Any way to debug what happened so I can take steps to make sure it doesn't happen again?
Thanks!
Steve

Bob,
After re-reading my initial reply, please do NOT think I was saying that "you" didn't answer my question about what happened.
I was trying to imply that sunspots and cosmic rays are indeed sometimes part of our life in IT, and that I was just going to "accept it, lose my history, and go on".
I do truly appreciate help, and would have hated to have you think that was directed "at" your reply...
Steve

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  • Getting this error: Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.

    I keep getting this error on my new Macbook Pro w/ Retina.
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    Connected to a wifi network and QNAP storage system.  There are 5 computers on this network, and each backs up just fine.  The issue is isolated to this one machine.
    This error shows up every week or so.

    A third-party NAS is unsuitable for use with Time Machine, especially if it's your only backup. I know this isn't the answer you want. I know Time Machine accepts the NAS as a backup destination. I know that the manufacturer says the device will work with Time Machine, and I also know that it usually seems to work. Except when you try to restore, and find that you can't.
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  • I got the message:   Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you. I got the message:   Time Machine completed a verification of your backups. To improve reliability, Time Ma

    I got the message:
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    Here's what the text of the system.log says when I filter for backupd:
    Jan  9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Starting standard backup
    Jan  9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Recovery backup declined by user.
    Jan  9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Backup canceled.
    Jan  9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Starting standard backup
    Jan  9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:48:42 justin-steeds-macbook-pro com.apple.backupd[2859]: Recovery backup declined by user.
    Jan  9 11:48:43 justin-steeds-macbook-pro com.apple.backupd[2859]: Backup canceled.
    Jan  9 11:51:07 justin-steeds-macbook-pro com.apple.backupd[2917]: Starting standard backup
    Jan  9 11:51:07 justin-steeds-macbook-pro com.apple.backupd[2917]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:51:34 justin-steeds-macbook-pro com.apple.backupd[2917]: Recovery backup declined by user.
    Jan  9 11:51:34 justin-steeds-macbook-pro com.apple.backupd[2917]: Backup canceled.
    Jan  9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Starting standard backup
    Jan  9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Recovery backup declined by user.
    Jan  9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Backup canceled

    Since this is a MacBook Pro hardware community, you might get better results by asking your question at the Time Machine forum, located within the Lion discussion group. 
    https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

  • Time machine completed a verification of your backups....

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    See > http://pondini.org/TM/C13.html

  • Time Machine on a NAS - Avoiding "Time Machine completed a verification of your backups....."

    I use Time Machine to wirelessly backup my MBA to a Buffalo NAS. It will work fine for weeks or months, then I will see the dreaded "Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.” error. Of course this means I lose all my backups.
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  • Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.

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    Unfortunately, the message pretty much says it all.
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    I'm afraid that AppleCare will tell you the same thing, but it's worth checking with them to see if there are any new developments in this regard for this puzzling issue which affects a small percentage of users.
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  • I got the message: Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.

    Here's what the text of the system.log says when I filter for backupd:
    Jan  9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Starting standard backup
    Jan  9 11:37:14 justin-steeds-macbook-pro com.apple.backupd[2618]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Recovery backup declined by user.
    Jan  9 11:37:33 justin-steeds-macbook-pro com.apple.backupd[2618]: Backup canceled.
    Jan  9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Starting standard backup
    Jan  9 11:48:20 justin-steeds-macbook-pro com.apple.backupd[2859]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:48:42 justin-steeds-macbook-pro com.apple.backupd[2859]: Recovery backup declined by user.
    Jan  9 11:48:43 justin-steeds-macbook-pro com.apple.backupd[2859]: Backup canceled.
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    Jan  9 11:51:07 justin-steeds-macbook-pro com.apple.backupd[2917]: Network destination already mounted at: /Volumes/TimeMachine
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    Jan  9 11:51:34 justin-steeds-macbook-pro com.apple.backupd[2917]: Backup canceled.
    Jan  9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Starting standard backup
    Jan  9 11:53:50 justin-steeds-macbook-pro com.apple.backupd[2987]: Network destination already mounted at: /Volumes/TimeMachine
    Jan  9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Recovery backup declined by user.
    Jan  9 11:54:07 justin-steeds-macbook-pro com.apple.backupd[2987]: Backup canceled

    Since this is a MacBook Pro hardware community, you might get better results by asking your question at the Time Machine forum, located within the Lion discussion group. 
    https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

  • Time Machine repeatedly "must create new backup"...

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    Any help appreciated.

    Hi there - I have a fairly specific problem:
    After replacing my 1TB HD at Apple's suggestion, I was able to successfully restore my data from Time Machine backup which resides in a Synology NAS (DS210j to be precise).  So far, so good.
    After about 3 days of use, I get a pop-up message from Time Machine stating that it has completed a verification of my backup and concluded that it must make a new, full backup.  This then wipes my entire history of Time Machine back-ups and then proceeds over another 3 days to complete another backup.
    So far, still reasonably good.
    The problem is that after the 2nd full cycle of this (ie. full backup, verify fail, full backup required etc), the message continues to recur.
    I have read through Pondini's FAQ (esp. C13) and I am still at a loss because my set-up (TM via NAS) has been stable up to this point and I had more than 1.5 years worth of Time Machine back-ups until the fateful day when I replaced my iMac hard drive.
    I have tried to address as many of Pondini's suggested reasons as to why C13 might recur (including rechecking power supply etc) but am at a loss because the set up was working before and nothing has changed other than the replacement of the hard drive in the iMac...
    One of the things I have tried is to check my computer name via System Prefs -> Sharing and noted that my Computer Name is the same as before the backups but "Computers on your local network can access your computer at: XXX-2 (i.e. a duplicate)". So I have now edited this to make this the same as the computer name (to remove the potentially offending -2).
    I also downloaded TM Buddy and wanted to post the following the log:
    Starting automatic backup
    Attempting to mount network destination URL: afp://[email protected]/Time%20Machine
    Mounted network destination at mount point: /Volumes/Time Machine using URL: afp://[email protected]/Time%20Machine
    Runtime corruption detected on /Volumes/Time Machine/XXX.sparsebundle (fsck_hfs -q termination status: 3)
    Network destination already mounted at: /Volumes/Time Machine
    Recovery backup declined by user.
    Backup canceled.
    Ejected Time Machine network volume.
    Attempting to mount network destination URL: afp://[email protected]/Time%20Machine
    Mounted network destination at mount point: /Volumes/Time Machine using URL: afp://[email protected]/Time%20Machine
    Forcing the backup image to mount read-only because it failed verification or is immutable
    Disk image /Volumes/Time Machine/XXX.sparsebundle mounted at: /Volumes/Time Machine Backups
    Starting manual backup
    Network destination already mounted at: /Volumes/Time Machine
    Recovery backup declined by user.
    Backup canceled.
    Failed to eject volume /Volumes/Time Machine (FSVolumeRefNum: -126; status: -47; dissenting pid: 0)
    I am running OS X 10.8.2 on a 2.93 GHz Core i7 27-inch iMac (mid 2010)
    Anyone have any suggestions?
    I am in the process of reformating the Time Machine back-up disk (i.e. the drive in my NAS) and trying the full backup again but thought I would ask here in the meantime since it's going to take 3 days or so to complete that anyway...
    Any help appreciated.

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