@angristan Stan The Incorruptible.
@angristan Yes, there is only one disk. ZFS can autocorrect errors (that would be invisible with another FS), but you need at least 2 disks, and a ZIL on yet another disk is a good idea too.
What probably happened : your disk created an error, the scrub ( or simply reading the sector ) detected the error, and since it had no way to correct it, it declared the file corrupt. It's how ZFS works.
@angristan T'as pu suppr le truc corrompu du coup ? J'ai pas suivi désolé