For example, you may keep a backup on an external hard drive, a USB drive and cloud storage. 1: Keep at least one backup file offsite.Ī 3-2-1 backup strategy reduces the impact of a single point of failure, such as a disk drive error or stolen device.2: Save your backups to two different types of media.3: Create one primary backup and two copies of your data.Here’s what the 3-2-1 backup rule involves: The Cybersecurity and Infrastructure Security Agency (CISA) recommends that individuals and businesses use the 3-2-1 strategy. Peter Krogh, a photographer, writer, and consultant introduced the 3-2-1 backup rule when he published his book, “The DAM Book: Digital Asset Management for Photographers,” in 2005. It’s a best practice for backing up data in which you store copies of important information from cell phones, computers and tablets. The 3-2-1 backup rule saves multiple copies of data on different storage devices and locations. The 3-2-1 backup rule: what it is and how it works Below we’ll explore how the 3-2-1 rule for backup and disaster recovery works as well as best practices for protecting your business from data loss. It’s also devastating if a natural disaster renders on-site devices inoperable however, ransomware poses one of the biggest threats to data availability.įortunately, the 3-2-1 backup rule combined with a recovery strategy helps companies get back up and running. When turning on a desktop or laptop computer, no business owner wants to see a hard drive disk failure message. The 3-2-1 backup rule is a best practice for backing up your data by saving multiple copies of data on different storage devices and locations.
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