hensing

TrueNAS Periodic Snapshot Overdue Checker

This Python script is designed for TrueNAS CORE/SCALE systems to proactively monitor all configured Periodic Snapshot Tasks. It checks if any task is significantly overdue based on its schedule and manually triggers a run using midclt to ensure no snapshots are missed.

This is particularly useful after a system reboot, a power outage, or any prolonged downtime where the TrueNAS internal scheduler might have missed its execution window.

(c) by Henning Dickten 2025 (@hensing)

🚀 Key Features

• Dynamic Task Handling: Fetches all active tasks using midclt call pool.snapshottask.query and does not require hardcoded IDs.

hensing

hensing

% use boldface for specific author in biblatex bibliography
% http://tex.stackexchange.com/questions/73136/make-specific-author-bold-using-biblatex
%
% usage:
% \input{boldauthorname}
% ...
% \begin{document}
% \boldname{Doe}{John}{J.}
% \printbibliography
% \end{document}

hensing

#!/usr/bin/python
# coding: utf-8
"""
    configures git to filter / clear the output of ipython notebooks by
    patching the .git/config and .gitattributes and adding 'filter_notebook' as filter
"""
import os
import sys
import warnings
import distutils.spawn

hensing

#!/usr/bin/env zsh
# 
# gets all ada devices and prints selected smartctl values for all devices
#
# by H.Dickten 2015

# get ada devices
ADA=`sudo camcontrol devlist |grep ada| cut -d "(" -f 2 |cut -d ',' -f 1|xargs`

# get array from ada list 

hensing

*.ipynb filter=filter_notebook

hensing

#!/usr/bin/env python
# coding: utf-8
"""
simple notebook to patch/replace XBMC paths in MyVideo.db
infos: [howto @ wiki.xbmc.org](http://wiki.xbmc.org/index.php?title=HOW-TO:Update_SQL_databases_when_files_move)
see also [path substitution](http://wiki.xbmc.org/index.php?title=Path_substitution)
"""
__author__ = 'Henning Dickten'

import sqlite3

hensing

#include <Python.h>

/***********************************************************/
/* define logging function and logtypes for python.logging */
/* by H.Dickten 2014                                       */
/***********************************************************/
enum logtypes {info, warning, error, debug};

static void log_msg(int type, char *msg)
{

hensing

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
clears all cells of an ipython notebook
given via stdin or filename
by H.Dickten 2014
"""
import sys

try: