Frequently Asked Question
What is the 3-2-1 backup rule?
Last Updated about a month ago
Keep 3 copies of your important data, on 2 different types of storage, with 1 copy offsite or in the cloud.
For example: the working files on your server, a second copy on a backup drive or NAS, and a third copy in a cloud backup service.
- Automate backups so they do not depend on someone remembering.
- Test restoring files regularly. A backup you have never restored is not proven.
- Keep at least one copy disconnected from the network so ransomware cannot reach it.