Huge Time Machine Back Up

I have been running Lion on my mid-2009 15" MacBook Pro for about three weeks.  Time Machine was able to find my previous back up volume on an external HD and keep on recording to it. 
This morning I saw a 61.3 GB back up in progress!  I do not use this machine all that much, just when I travel, but I recently upgraded to 10.7.2.  I tend to hook up the external drive to it for back up about once a week or so since this is not my primary work machine and I do not create much content on it.   Therefore I am a bit at a loss to understand why this backup is so large.   My entire boot volume on this MBP is only 66GB. 
Perhaps 10.7.2 reindexed the drive and I am having the entire drive recorded this time.  Perhaps it is downloading the internally stored snapshops that Time Machine takes on MacBook Pro machines.  My last back up for this MBP was 10 days ago but other than updating software I have not done much with it in that time.
Has anyone else experienced a very large Time Machine back up after upgrading to 10.7.2? 
Thanks in advance for your responses. 
Jay

Jay Kappmeier wrote:
This morning I saw a 61.3 GB back up in progress!
Check Time Machine Troubleshooting for help in identifying what that backup was so big.
I recently upgraded to 10.7.2.
If you installed the "combo" updater that would change a lot of files.
I tend to hook up the external drive to it for back up about once a week or so
I may be mistaken, but I believe a long interval between backups can cause Time Machine to do a full backup.
Perhaps 10.7.2 reindexed the drive
That wouldn't cause Time Machine backups to be larger.

Similar Messages

  • Will existing Time Machine back ups build after 1 account migration

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    The problem was that I could not (maybe for the same contiguous reasons) create a new partition on the old i-Mac just to temporarily move the TM back up to. Without it I could not 'empty' the WDC firewire drive and partition it prior to returning the TM back ups to it albeit contiguously in a dedicated partition.
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  • EHD recommendations for Time Machine back-up?

    Hi!
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    i have actually very good experiences with LaCie drives, particularly the d2 Quadra.
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    john2b_75 wrote:
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    I have 2 Macbooks each with an account for me and one for my wife. I use one Macbook logged in with my account and my wife uses the other Macbook only logged in on her account. We both make regular time-machine back-ups each on a separate external disk. Is it possible to update her account on my macbook using her external disk without overwriting my stuff on the same Macbook and vice versa?

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  • Can I use my time capsule for time machine back ups and as an external storage device?

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  • I am trying to get space on an external hard drive which has some old time machine back up files that I do not need but can not eliminate, even by going into the time machine, clicking on the backup file to be eliminated and using the drop down eliminate

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    just got Prosoft drive genius 3 software, and it's telling me that the external hard drive that i am using for my time machine back up drive needs to be defragmented.  is it wise to do this or should i not??

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  • My external hard drive is 'seen' by my iMac and I can go into the Finder and open files and folders. I am using the hard drive for Time Machine back up. However Time Machine says it can't find the drive. Same thing has happened with Final Cut Express.

    My new LaCie external hard drive is 'seen' by my iMac and I can go into the Finder and open files and folders. I am using the hard drive for Time Machine back up. However Time Machine says it can't find the drive.
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    How do you delete file from time machine back up?

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  • I have partitioned my time capsule, but I can't get it to work as a Time Machine back up and permanent media server for both mac and PC. What format do I need to partition the drive to so that it works for both mac and windows and so that it will be visab

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    There is no media server in the TC.. it is merely disk storage.. you can serve files from it to a media device.. but the TC itself is dumb as dumb.
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    Although you cannot partition the TC. you can still copy files to it.. this does have implications for TM.. but as long as there is plenty of free space should not be a major issue.
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  • Restore iPhotoLibrary specifically from EXTERNAL Hard drive  Time Machine back up?

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  • Can I make one iphoto library from two time machine back-ups?

    Hi
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    Yellowvan wrote:
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    no one?
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