[MichaelD]

I (try) to do a daily backup to sparse images which I cycle through. I noticed one day one image was 90GB smaller and I became concerned. I know what happened: Sierra's System Preference->iCloud->iCloud Drive -> Options checked Optimize Mac Storage.

My question is how can one compare the sparse images to see which files are missing. A launched a couple of instance of Terminal, mounted the images, changed the directories of each instance of Terminal to a mounted image. I then did sudo du -sh */ and ls -lh on each image in each instance. Both were identical from the information reported. The images were 690GB and 780GB.

Shouldn't I have seen the difference or am I clueless?

How can I figure out the differences between two images?

Thanks,
Michael