IdeaFarm (tm) Archive Healer:

This feature "heals" multiple local copies of an archive of files so that each copy contains exactly the same files, and every copy of each file is identical. The healing is done safely, using voting to resolve discrepancies, and moving (not deleting) rejected copies to a "reject folder" on the same device. This feature is currently being tested using 25_9 HDD and SSD devices, each containing an archive of 2TB of data in 200K files. Quality status: this feature is offered as an "alpha release", which means that it passes internal testing but has not yet been proven in the field.