Post #2382409

@mwl@io.mwl.io @mdione@en.osm.town @grumpybozo@toad.social @djfiander@code4lib.social @b0rk@social.jvns.ca That said, the *point* of scrub is the same as for RAID: it checks *all* the block checksums. Ordinary FS operations only check block checksums on blocks that are referenced by those operations. If a disk sector goes bad within a file that's rarely accessed, and scrub is not being run periodically, nothing will notice until the next time the file *is* accessed, which might be too late to recover it. (2/2)