#!/bin/sh -eu

# Scrub all healthy pools that are not already scrubbing.
zpool list -H -o health,name 2>&1 | \
	awk '$1 ~ /^ONLINE/ { print $2; }' | \
while read pool
do
	if ! zpool status "$pool" | grep -q "scrub in progress"
	then
		# Ignore errors (i.e. HDD pools),
		# and continue with scrubing other pools.
		zpool scrub "$pool" || true
	fi
done
