3-2-1 Backup Strategy
3-2-1 Backup Strategy: Protecting and recovering your critical data
Definition
Proven backup strategy: 3 copies of data, on 2 different types of media, including 1 off-site copy. Protects against hardware failures, human error, and disasters.
Usage example
Strict application of the 3-2-1 rule for all our clients: 3 copies (Production, Local NAS, S3 Cloud), 2 media (NVMe SSD, Minio Object Storage), 1 off-site (OVH Cloud Roubaix/Gravelines) managed via Restic.