- With the default settings that ship with Postgres, ZFS underperforms EXT4 by a factor of 2-3x.
- Most notable setting is
shared_buffers=128MB
- Most notable setting is
- When benchmarks are running on ZFS, severe write amplification is reported by
iotop
andtxg_sync
is performing a lot of IO. Example: - The DB used for benchmarking is ~30GB. The system has a total of 64GB RAM with the ARC being given a maximum of ~32GB. Irrespective of the small value of
shared_buffers
, almost the entire DB should be cached in the ARC and the ZFS benchmark should not suffer so greatly.
{% if certificate and certificate_id > 0 -%} | |
{% if ssl_forced == 1 or ssl_forced == true %} | |
{% if hsts_enabled == 1 or hsts_enabled == true %} | |
# HSTS (ngx_http_headers_module is required) (63072000 seconds = 2 years) | |
add_header Strict-Transport-Security "max-age=63072000;{% if hsts_subdomains == 1 or hsts_subdomains == true -%} includeSubDomains;{% endif %} preload" always; | |
add_header Referrer-Policy strict-origin-when-cross-origin; | |
add_header X-Content-Type-Options nosniff; | |
add_header X-XSS-Protection "1; mode=block"; | |
add_header X-Frame-Options SAMEORIGIN; | |
add_header Content-Security-Policy upgrade-insecure-requests; |
# source: https://forum.proxmox.com/threads/removing-deleting-a-created-cluster.18887/ | |
#/bin/sh | |
# stop service | |
systemctl stop pvestatd.service | |
systemctl stop pvedaemon.service | |
systemctl stop pve-cluster.service | |
systemctl stop corosync | |
systemctl stop pve-cluster | |
killall pmxcfs |
#!/bin/bash | |
for d in $(find /sys/kernel/iommu_groups/ -type l | sort -n -k5 -t/); do | |
n=${d#*/iommu_groups/*}; n=${n%%/*} | |
printf 'IOMMU Group %s ' "$n" | |
lspci -nns "${d##*/}" | |
done; |
I will be moving from FreeNAS jails to ubuntu with docker, docker compose, and portainer. FreeNAS support and updates are lacking. There are many advantages to making the switch and with ZFS on linux I think FreeNAS may be a thing of the past. Stay tuned for a new guide of my latest setup. Check out my other gists for progress on the switch. https://gist.github.com/mow4cash/626275e095f7f90898944a85d66b3be6
WARNING READ THIS: This page contains incomplete and possibly incorrect info. The page is constantly being edited and worked on. Many of these should work but some may be broken. Read the code carefully to understand what you are doing, stuff may be need to be changed for your own use. This includes but not limited too JAIL AND ROUTER IPs, YOUR FREENAS MAIN VOLUME,THE MOST RECENT RELEASE OF DOWNLOADED FILES Use at your own risk.There may be helpful info in the comments.
Find me in the FreeNAS forums