Check the status of a ZFS pool and mail the admin it if it's not ok.

diskCheck.sh

#!/bin/bash

# Emails the status of a FreeNAS ZFS RAID Array to the Admin.

ADMIN="admin@example.com"
POOL="ZFS_POOL_NAME"
STATE=`zpool status $POOL | grep 'state:' | awk '{ print $2 }'`

if [ "$STATE" = "ONLINE" ]; then
        exit 0
else
        zpool status $POOL | mail -s "$POOL ZFS Pool Status: $STATE!!!" $ADMIN
        exit 1
fi