#!/bin/bash

# CHANGE LOG:
#
# 2021-08-01	A.Werner	ADD: wall + console output + new string 
#					clean,checking
#
# 2021-09-05	A.Werner	ADD: new OK string added 
#

function dit { 
	beep -f 2750 -l 75 -d 50
}

function dah { 
	beep -f 2750 -l 175 -d 50
}

function spc {
       sleep .1
}

function s {
	dit
	dit
	dit
        spc
}

function o {
       dah
       dah
       dah
       spc
}

function morse_sos {
	s
	o
	s
	sleep .5
}

mdState=$( /usr/sbin/mdadm --detail /dev/md0 | grep "State :" | cut -d: -f2 | tr -d ' ' )

case "$mdState" in
	active|active,checking|clean|clean,checking)
		: # nop
		;;
	*)
		morse_sos
		echo "$0 WARNING: mdadm reports md0 status: '$mdState' on $(date)" >&2
		echo "$0 WARNING: mdadm reports md0 status: '$mdState' on $(date)" >/dev/console
		wall "$0 WARNING: mdadm reports md0 status: '$mdState' on $(date)" 
		;;
esac