#!/bin/bash

for pool in $(zpool get name -H -o value)
do
    status=$(zpool get health -H -o value $pool)
    if [ "$status" != ONLINE ]
    then
        errors="$error\"$pool\" status is $status\n"
    fi
done

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