Ian Bishop porjo

My TrueNAS Scale server recently started throwing the following zfs module kernel panic on boot:

PANIC at space_map.c:405:space_map_load_callback()

What follows are the steps I took to retrieve the data from the corrupted zfs pool.

Getting setup

How to install phpredis extension on Centos6 using pecl:

# Enable EPEL repository
yum install epel-release

# Install Autoconf v2.68
yum install autoconf268

# Install the extension

sudo dnf install compat-openssl10 motif libXaw libidn1.34 libjpeg-turbo-utils

pacmd load-module module-null-sink sink_name=rtp format=s16le channels=1 rate=16000
pacmd load-module module-rtp-send source=rtp.monitor

This sets up a multicast socket for RTP streams. When I tested this was 224.0.0.56:46136

	#!/bin/bash
	# Given a list of IP addresses (in file 'ips') find what the SSL CN (subject) is for each one.

	echo -en "IP\tSSL CN\n"

	for i in `cat ips`; do
	echo -en "$i\t"
	out=`timeout 2 bash -c "openssl s_client -showcerts -connect $i:443 < /dev/null 2> /dev/null \| openssl x509 -noout -subject 2> /dev/null \| grep 'subject=' \| sed -rn 's/.CN=([^ /]+)./\1/p'"`
	if [ $? -eq 124 ]; then
	echo "(timeout)"

	// Sign the request and return header array for use by curl
	//
	// For HTTP methods with no payload (GET,DELETE) leave $Payload , $ContentType empty
	//
	// Based on: http://usefulangle.com/post/34/aws-s3-upload-api-php-curl
	private function SignRequest($Method, $URL, $Payload='', $ContentType='')
	{
	if(!defined('AWS_ACCESS_KEY_ID') \|\| !defined('AWS_SECRET_ACCESS_KEY') \|\| !defined('AWS_REGION'))
	return null;

	#!/bin/bash

	# compare AWS ELB: CLB (classic) and ALB (application) response times
	# all output times are in seconds

	CLB_URL="https://clb.example.com"
	ALB_URL="https://alb.example.com"

	clb_wins=0
	alb_wins=0