without proper monitoring (nagios for example) this is the easy way to catch vms in incorrect states - other than running, suspend, stopped..

one-check-nonok-vm-state.sh

#!/bin/bash

[ "$DEBUG" = "YES" ] \
	&& set -x

qverbose ()
{
	[ "$VERBOSE" = "YES" ] \
	&& return 0 || return 1
}

list_running_vmids ()
{ # none
	onevm list --xml \
	| xmlstarlet sel -t -m '/VM_POOL/VM' -v 'ID' -n
}

get_vmid_state ()
{ # 1: vmid
	onevm show  --xml $vmid | xmlstarlet sel -t -m '/VM' -v STATE -n | head -n 1
}

list_running_vmids | while read vmid
do
	[ -n "$vmid" ] || continue

	qverbose \
	&& echo "# $vmid"

	vm_state=""
	vm_state=$( get_vmid_state "$vmid" )

	case "$vm_state" in
		"5") # suspend
			echo "OK: vmid $vmid is ok, suspend"
			;;
		"4") # stopped
			echo "OK: vmid $vmid is ok, stopped"
			;;
		"3") # running
			echo "OK: vmid $vmid is ok, running"
			;;
		*)
			echo "ERROR: vmid $vmid in nonstandard state \"$vm_state\"" >&2
			;;
	esac
			
done