Figuring out what changed between incremental versions

I've got a backup that runs weekly and the incremental backup size is quite steady at 10 GB. This past week, the backup was 80 GB. What's the easiest way to identify the new (huge) files?


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I did mount each of the two drives and was surprised to find the actual data of the newer, larger backup was only 1 GB larger than the older, smaller backup. The data that is backed up has not changed and is one "super folder" containing lots of data.
How could this be?...
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Not sure how to explain the 1GB difference if you say that nothing in the 'super folder' has changed other than that Acronis tends to work on changes to sectors containing the data rather than to the files alone, so I would guess that if those sectors occupied by the 'super folder' contents are also shared by other data on the system, then this could explain the difference, especially on a system with disk fragmentation, but only Acronis could confirm or deny this theory?
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I was rounding - it was something less than 1 GB in the actual data. My point was that although there was only that relatively small increase in the data, somehow there was a very large 70 GB increase in the incremental backup size.
Well, thank you in any case!...
Eliezer
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