Part 2 of the FreeBSD Foundationals series is out! "ZFS - The Last Filesystem You'll Ever Need."

We go from the philosophy of silent data corruption to practical, battle-tested data management. Covers pools, datasets, why you shouldn't blindly add L2ARC, native encryption, and using […]

Modern VDI on Proxmox: ZFS Reliability and GPU Acceleration at Lower Cost - Klara Systems Modern VDI on Proxmox using ZFS and GPU acceleration. Learn how to deliver secure virtual desktops with lower cost and no vendor lock-in.

What does hyperconverged storage actually mean?

In modern VDI setups, combining storage and the hypervisor can reduce latency by keeping data local to the compute running the workloads.

Watch the full session: klarasystems.com/webinars/mod...

#ModernVDI #OpenZFS #Klarasystems

OpenZFS 2.4.1 Released with Linux 6.19 Compatibility and FreeBSD Fixes OpenZFS 2.4.1 adds Linux 6.19 support, improves FreeBSD compatibility, and delivers dozens of stability and build fixes across platforms.

🎁 OpenZFS 2.4.1 Released with Linux 6.19 Compatibility and FreeBSD Fixes

#openzfs #zfs #freebsd #opensource

TrueNAS 25.10.2 “Goldeye”: stabilità migliorata e fix mirati TrueNAS 25.10.2 “Goldeye” introduce fix mirati, maggiore stabilità e miglioramenti operativi per ambienti domestici e aziendali.

TrueNAS 25.10.2 “Goldeye” introduce fix mirati, maggiore stabilità e miglioramenti operativi per ambienti domestici e aziendali. #TrueNAS #Goldeye #Storage #OpenZFS #NAS

ARC and L2ARC Sizing on Proxmox - Klara Systems Learn how to size ARC and L2ARC for Proxmox. A guide for memory budgeting, ARC caps, and when secondary cache improves ZFS performance.

Running Proxmox on ZFS? ARC and L2ARC sizing matters more than most configs.

Our latest article explains how ARC and L2ARC really work, what not to do, and how to size them properly for Proxmox workloads.

👉 Read the article: na3.hubs.ly/y0k7pZ0
#Proxmox #ZFS #OpenZFS

Using zfs rewrite -P lets you rewrite data logically, applying updated properties or allocation behavior without re-replicating unchanged blocks. That means less I/O, and faster operations when rebalancing or updating datasets.

#ZFS #OpenZFS #Storage #Infrastructure

ZFS snapshots on Proxmox make VM backups instant and space-efficient.

Create point-in-time copies you can roll back in seconds — perfect for fast recovery and safe experimentation.

Simple, powerful, and built right into ZFS.

#ZFS #Proxmox #OpenZFS

Automate ZFS replication with syncoid:

syncoid -r testpool/source testpool/target

Replicate datasets and snapshots together, with automatic incremental updates—ideal for backups and DR setups.

#ZFS #OpenZFS

Thanks to everyone who joined A New Year, A New ZFS: What 2.4 Brings to the Table 🎉

Allan Jude and Paul Dagnelie covered what’s new in ZFS 2.4, why it matters, and how to approach upgrades with confidence.

Missed it live?
Catch the recording here: https://bit.ly/4qebJKV
#ZFS #OpenZFS

Synex Server: A New Debian Based Linux Distro With Native ZFS Installation Support Synex is a Linux distribution that's been around for some months as a Debian-based, minimalistic Linux distribution out of Argentina focused on the needs of small and medium businesses

🎉 Synex Server: A New Debian Based Linux Distro With Native ZFS Installation Support - Phoronix

www.phoronix.com/news/Synex-D...

#openzfs #argentina #opensource

ZFS - Making use of my storage Looking through my System76 Thelio Major R2 box, I found I have a lot of resources I should start making use of. Heck, I have a lot of hardware, albeit old, that I should make use of. I don't care ab...

I just wrote something

#linux #opensource #storage #openzfs

www.iamteedoh.io/zfs-making-u...

Looking to spot storage bottlenecks in real time?
zpool iostat 1 gives you a live, second-by-second view of IOPS and bandwidth across your pools.
A simple command that delivers deep visibility into ZFS performance.

#ZFS #OpenZFS #Klarasystems

Screenshot showing neofetch and a RHEL 9.7 system, that is running on a ZFS root

I need RHEL+Podman for something. But I also really really like ZFS, that I use on my #FreeBSD systems ...

RHEL 9.7 on a ZFS root 😀

Note: This is ENTIRELY unsupported and shouldn't be done in a production environment 🤡 😆

#linux #rhel #redhat #zfs #openzfs #unsupported #sysadmin

To summarize: I have a mirrored #ZFS pool which crashes both FreeBSD kernel and #OpenZFS when trying to import (both disks and each separately).

The disks are old but fine, no IO errors (I have dd/raw images of both disks), last daily scrubs were fine.

Ideas anyone? @robn perhaps?

Related to […]

OpenZFS 2.4 Extends Linux Kernel Support to 6.18 and Supports FreeBSD 14–16 OpenZFS 2.4 extends Linux kernel compatibility up to 6.18 while supporting FreeBSD 14, 15, and 16, bringing major performance, quota, and storage improvements.

🎉 OpenZFS 2.4 Extends Linux Kernel Support to 6.18 and Supports FreeBSD 14–16

#openzfs #freebsd #opensource

Thanks for everyone who joined our webinar - 12 days of ZFS: Tips, Tricks, and Treats

Our team at Klara hopes you have an eventful, safe and Merry Christmas! Stay tuned for information about our upcoming webinar.

If you missed it, tune into the recording: https://bit.ly/3KNqsNH
#ZFS #OpenZFS

⏰It’s almost time!

We’re just 1 hour away from 12 Days of ZFS: Tips, Tricks, and Treats.
Join Allan Jude and Jim Salter for a rapid-fire session packed with real-world tuning strategies, scaling lessons, and practical tips.
Link → https://bit.ly/49ubKp1
#OpenZFS #OpenSource

A key tip from Michael W. Lucas in our recent webinar: ZFS isn’t “just another filesystem.”

Tools like df don’t apply the same way—because ZFS is a full data-management platform.
Shift your mindset and the power of ZFS opens up fast.
Watch the full webinar: https://bit.ly/48Uzu4H
#ZFS #OpenZFS

“How many VDEVs is too many?”
The answer isn’t simple. Our guide shows how adding VDEVs affects performance, resiliency, and expansion, when mirrors, RAID-Z, or DRAID make sense, and how to keep large pools fast and manageable.
Read → https://bit.ly/4rsiDgW
#ZFS #OpenZFS #Klarasystems

Monitoring Server Storage Cloud Database SAN LAN Backup Tape Free Performance Monitoring for Server, Virtualization, Storage, Database, Cloud, Container, SAN, LAN, Backup, Mainframe

XorMon - The new version of the full-stack infrastructure performance monitoring tool is here!
v2.1.0 introduces monitoring for #Commvault, #MongoDB, #OpenZFS and several tape libraries: xormon.com/note210.php

Topology implementation video: www.youtube.com/watch?v=D9xS...

REMINDER!
We’re just one week away from our webinar - 12 Days of ZFS: Tips, Tricks, and Treats
Join Allan Jude and Jim Salter as they share real-world tuning strategies, scaling lessons, and design insights.
Don’t miss out → https://bit.ly/3XNAX6z
#OpenZFS #OpenSource

Hi, OpenZFS enthusiasts,
My root with zfs reference scripts are here:
codeberg.org/atiq/zfs/src...

#zfs #openzfs #pop_os #cachyos

We’re going live in 1 hour! ⏰

Join Allan Jude and Michael W. Lucas as they go beyond the man pages—sharing real-world ZFS tuning, scaling, and design lessons learned from production.
🗓️ Happening today at 11 AM EST

Don’t miss it:
#ZFS #OpenZFS #Webinar

Another data corruption, fortunately not fatal, with btrfs. Two mirrored disks that have little activity. On the same server, Proxmox 9, there is also a ZFS pool (mirrored, more active). Same type of disks.

An employee mistakenly connected an electric heater to a socket protected by the UPS […]