#!/bin/bash

for result in "$(zpool list -H -o name,health tank)"
do
    name=$(cut -f1 <<< $result)
    health=$(cut -f2 <<< $result)

    if [ "$health" != ONLINE ]
    then
        errors="$errors\"$name\" health is \"$health\"\n"
    fi
done

if [ "$errors" != "" ]
then
    echo $errors
    exit 2
fi