How to Back Up Your Entire Life in 2026: The 3-2-1 Rule Updated for Cloud, NAS and Solid State

[Estuary59]

The 3-2-1 backup rule has been the gold standard for data protection for two decades: three copies of your data, on two different types of media, with one copy offsite. In 2026 the options for implementing that rule have expanded and become cheaper but the principle remains sound. What has changed is which implementations make practical sense for home users, what threats you are actually protecting against, and how to automate the whole thing so you never have to think about it.

For most people in 2026 the practical 3-2-1 looks like this: your main working files on your primary machine, an automated local backup to a NAS device on your home network running a drive array, and a cloud backup service running continuously in the background. Synology and QNAP both make consumer NAS devices that start under £200 for a two-bay model. Backblaze Personal Backup charges around £7 per month for unlimited storage and is the most widely recommended cloud backup service for home users. Together these give you the local fast restore when something goes wrong and the offsite protection if your house burns down or gets flooded.

Solid state drives have become cheap enough that external SSD backups now make sense where previously you needed spinning hard drives. A 2TB external SSD costs around £80 and offers faster backup and restore times than a spinning drive plus greater shock resistance if you are carrying it around. For photographers, video editors and others with very large file collections the economics still sometimes favour spinning drives or a NAS, but for typical home users an external SSD plus Backblaze is a complete solution. The one thing most people still skip is testing restores: backing up without ever verifying you can restore from the backup is not actually a backup strategy.

3 2 1 Backup Strategywww.backblaze.com