The 3-2-1 rule was created at a time when tape was the most widely used backup media. Today, disk and cloud backups have largely replaced tape (although tape still has its place).

In recent years, the amount and importance of data handled in business and personal life has been increasing at an accelerating rate, and the loss of data due to natural disasters or man-made ...

According to Heithcock, it is all about safeguarding data, as he explains: 2In 2022, the 3-2-1 backup rule will continue to be the golden rule of complete data protection.

So I've always tried to follow the 3-2-1 rule for personal backups (3 copies of the data, 2 backups, 1 backup off-site). My NAS crashed a couple of years ago, right around the same time as a house ...

For IT decision makers, the challenge is not a lack of awareness of the 3-2-1 data protection rule, but how to implement it without creating additional IT costs and complexity.

Follow the 3-2-1 rule of thumb to keep important data from disappearing forever: 3 - Have THREE copies of your data. One is a primary backup and two are copies. 2 - Save copies of your backups on TWO ...