LOCKSS is a preservation strategy developed by Stanford University Libraries based on the principle that digital files should exist in multiple copies to prevent loss.
The 3-2-1 Backup Rule
Industry standard for digital preservation:
- 3 copies of your data: The original files plus two backup copies, ensuring that no single point of failure can destroy all your documentation
- Stored on 2 different types of media: Diversifying storage media protects against technology-specific failures (e.g., if all your hard drives are from the same manufacturer and there's a design flaw)
- With 1 copy stored off-site: Physical separation protects against location-based disasters like fire, flood, or theft
Example Implementation:
- Copy 1: Original files on your working computer or primary storage device
- Copy 2: First backup on an external hard drive kept in your studio or home
- Copy 3: Second backup stored in cloud storage (different technology and off-site)
