os x + ext drives + mirroring (?)

Out of context: Reply #7

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  • ribit0

    Also in most backup software you'll see choices to Duplicate a folder or drive (which can also be setup on a schedule, and will scan just for the files that weren't previously added to the duplicate set), but you want to choose Backup, because Backup also keeps files that have been deleted from the main drive, whereas Duplicate will delete them from your mirror as well..

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