Can rsync do incremental backups if the initial full was done with robocopy

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For example, say I have a full backup done using robocopy. Can I then use rsync to replicate just the changes? Or will rsync do another full copy? I don't want that to happen because it's over a slow WAN link.

Best Answer

Short answer: yes

Long answer: The file access times may differ but if you use rsync -ci that will force it to compute a checksum for the source and destination file. The -i option will give you verbose output for what changes in each file. Run it with -n to start out with and it will just tell you what it will do without transferring anything. You will need rsync to be installed on both ends of the transaction.

Check out the man page.

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