[witten]

borgmatic's "spot" check (probabilistically) protects against both of those failure modes: https://torsion.org/borgmatic/docs/how-to/deal-with-very-lar...

[dewey]

Indeed, I think these kind of automated checks are much more helpful than telling people they have to "test" test their backup. If a backup software doesn't do that automatically and reports if there's something off it's not good software or user experience.