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PowerApp101
Asked: 2009-06-18 01:45:32 +0800 CST

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.

backup rsync incremental-backup

2 Answers

  1. 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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  2. If the file and folder structure is the same on both sides it will be an incremental copy. I would do a dry run with rysnc to test first though.

    rsync --dry-run [insert rest of command here]
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