#!/bin/bash

if [ $# -eq 0 ] ; then
    echo "Please provide pool name as first argument, e.g. 'tank'."
    exit 3
fi

status="$(zpool status "$1")"

if [ "$(echo "$status" | grep '^ state:')" = ' state: ONLINE' ]
then
    echo "OK - Pool '$1' is online"
    exit 0
else
    echo "CRITICAL - Pool '$1' is FAULTY or NOT ONLINE"
    echo "$status"
    exit 2
fi
