​ for people who use #ZFS zraid1 : how often should i scrub a 4x2TB pool of old shitty disks?

i don't have any backup of my this pool so i bet on zfs to save me.
once a month (default)
twice a month
weekly
Poll ends at .
@Stellar once every minute.

no idea
@kura ​​ it takes multiple hours, i can't run it every minute!
@Stellar get faster Spinny disks.