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).

The 3-2-1 backup rule was made for small-scale use in the pre-cloud era when tape still ruled. Is it relevant in the 2020s, or can we repurpose its fundamental principles?

I have adhered to the 3-2-1 backup rule for years and continue doing so today. It ensures I have multiple copies of all my ...

Faulty 3-2-1 implementations. Many things that pass for backup systems now do not pass even the most liberal interpretation of the 3-2-1 rule. A perfect example of this would be various cloud ...

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 ...

This 3-2-1 rule is considered a best practice to make sure that data gets backed up properly, and to minimize any single point of failure of the data backup process.

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 ...

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.