Grandfather, Father, Son (GFS) vs. Progressive (Incremental Forever) Backup Paradigm

[@storagepipe]

Thanks. I'm glad you liked it.

[@mrjohnnnn]

very detailed thanks

[@whizzardno1]

what happens if an increment in the chain gets corrupted?

[@alexanderkucheryuk4722]

Either the entire chain is lost or only backups that were made after the point of corruption. It should be noted that enterprise level software allows you to validate and verify backups after making them avoid this type of situation. Redundant storage deters any hardware imposed malfunctions.

[@jamesdonnald6527]

GFS never made much sense to me, unless you keep all the daily tapes for the entire RPO objective. A file created on Wednesday and accidentically deleted on Thursday would be lost - if you don't catch it before the Wednesday tape is recycled. Progressive (with retention policy) is the only way to go today. Thanks for a nice presentation.