Grandfather-father-son
nouncandidate·updated May 12, 2026
Retaining multiple versions of the back-up files off-site on a "grandfather-father-son" rotating basis is recommended. This tape methodology creates three sets of back-up tapes: daily incremental sets or "sons," weekly full sets or "fathers," and end-of-month tapes or "grandfathers."
Framework senses
Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary1 senseview framework →
- §1
- Retaining multiple versions of the back-up files off-site on a "grandfather-father-son" rotating basis is recommended. This tape methodology creates three sets of back-up tapes: daily incremental sets or "sons," weekly full sets or "fathers," and end-of-month tapes or "grandfathers."