Time machine backup file size larger than size of backup hard drive.  Is something wrong?

My 3 TB external hard drive (My Book Studio) is my Time Machine drive.  But Finder says that backup.backupdb is 6.9 TB in size, or over twice the drive's capacity.  Should I assume that the drive is corrupt or failing and that I can't rely on Time Machine now?  Or is Finder measuring something other than the actual size of the file...?

I have this problem as well.  I have two laptops backed up to the same external hard drive, and I would like to move just one of the laptop's backups to a new drive.  The partition for both is 600GB, but the size of one laptop's backup folder is 850GB and for the other it is 3.3TB.
I would like to know the actual size of each laptop's backup folder.  Getting the size of the volume is not useful because I need to know the sizes of the two individual backup folders within it.

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    Welcome to Apple Support Communities
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    Thanks for using Apple Support Communities.
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    I am sorry, i am confused about what exactly you are trying to say here.
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  • Time Machine won't let me back up an external hard drive

    Hello,
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    Steve
    PS First ever post!

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  • Anyone got Issue with Time Machine on Mac OS 10.9.5 on External Hard Drive?

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