The philosophy behind data protection in the server room or data centre has long been one of redundancy. You can’t afford to have your data lost, corrupted, or compromised, so always have a backup. Data protection is really an exercise in managing your recovery point objectives (RPOs) and recovery time objectives (RTOs) for the most critical services in your operational technology stack. Data protection also includes disk mirroring, snapshots, clustering, and redundant networks. While the tools available to system administrators have evolved, the general approach to data protection has always been one of resilience through redundancy.