Why do Back In Time snapshots appear to be so large?

backup

It seems that checking properties under context menu is not reliable in such cases. When I used du command it showed right usage. I could get this suggestion from Launchpad's 'Back in Time's' Mr. Dan.

This is because backintime uses hard links, where each file is stored once, but makes it look like each copy takes up additional room. For more details please refer to https://answers.launchpad.net/backintime/+question/146072.


My guess is that your external hard drive is formatted FAT32 or some other file system that does not support hard links. It also appears that if the partition type containing the file system is not a Linux (0x83) partition, the file system will not properly record the disk consumption of the hard links. If you create a Linux native partition on your external hard disk and format it with a native Linux file system such as ext4 it should work properly.

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