No doubt about it: Data deduplication can be a magic bullet for backup. Organizations that apply it intelligently will see faster backups, easier restores, and a reduction in power, space, and cooling costs. But put in the wrong solution, and you may instead find yourself walking the unemployment line. To help companies choose the best technology for their needs, I’ve identified five key questions to ask: Where, where, where and how fast a backup device is fast enough for your needs.”]
Source: https://www.darkreading.com/database-security/deduplication-checklist