This is NOT Proxmox exclusive and will most likely work on any Debian based Linux distro using openZFS for zpools/raid that has been peoperly configured for sending SMTP Email.

1. Prerequisits:
   1. System must have been configured to send SMTP EMail if send to “root” user.
   2. ZFS pools (raids) must already be in place
2. Create a shell script for use in /etc/cron.hourly/ :
   

   /etc/cron.hourly/check-raid-status.sh

   #!/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 
   #
   # 2025-04-26	A.Werner	rework: for pve and zpools with email alert 
   # 
   #
    
   MAILTO=root
   SUBJ="$(hostname -s):RAID STATUS ALERT:"
    
    
    
   function dit { 
   	beep -f 750 -l 75 -d 50
   }
    
   function dah { 
   	beep -f 750 -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
   }
    
   #set -x
    
   zpoolStatus=$( zpool status -x )
    
   case "$zpoolStatus" in
   'all pools are healthy')
   	: # nop
   	;;
   *)
   	morse_sos
   	echo "$0 WARNING: zpool status -x reports status: '$zpoolStatus' on $(date)" >&2
   	echo "$0 WARNING: zpool status -x reports status: '$zpoolStatus' on $(date)" >/dev/console
   	wall "$0 WARNING: zpool status -x reports status: '$zpoolStatus' on $(date)" 
   	echo "$0 WARNING: zpool status -x reports status: '$zpoolStatus' on $(date)" | mail -s "$SUBJ" "$MAILTO"
   	;;
   esac

3. Make the shell script executable:
   

   chmod -v +x /etc/cron.hourly/check-raid-status.sh

— Axel Werner 2025-04-26 16:19