: A comprehensive survey paper covering various backup methods, including full vs. incremental and on-line backup technologies like snapshots.
Depending on whether you are looking for academic research on data backup, a literal paper-based backup method, or practical professional guidelines, here are several "proper" papers and resources: 1. Back Up
: This is a unique paper-based solution discussed by ExtremeTech that allows you to print bit-mapped data onto acid-free paper, which can last for 100+ years. It is most commonly used for backing up high-value, small-sized data like encryption keys . Summary of the "3-2-1 Rule" The 3-2-1 Backup Strategy of Data Protection - Backblaze : A comprehensive survey paper covering various backup
: This USENIX research paper is a classic study comparing different strategies for large file systems. : This is a unique paper-based solution discussed
If you were looking for a way to back up digital data onto actual paper:
: This official CISA publication summarizes security considerations and best practices for critical data.