Zero RPO Across Two Data Centers. No Delay. No Gaps.
We engineered a multisite Proxmox + ZFS architecture using synchronous mirroring, cross-server NVMe pools, and failover planning to achieve zero RPO — plus up to 68% performance gains.
Check out the case study: na3.hubs.ly/y0lYtf0
European organizations are under increasing pressure to maintain true data sovereignty.
Join Allan Jude from Klara Inc and Eirik Øverby from Entersekt, as they explain why Entersekt chose ZFS for EU sovereign storage.
Register here: na3.hubs.ly/y0k7Q00
#OpenSource #Datasovereignty #ZFS
Fast Dedup in OpenZFS 2.3 makes ZFS dedup viable for Proxmox VE 9.x — but only with proper pool design and memory budgeting.
We cover architecture, DDT quotas, ARC sizing, workload selection, and operational controls.
Read the full guide: na3.hubs.ly/y0l77K0
Need to scrub only data written during a specific window?
Use zpool scrub -S <start> -E <end> to target blocks written between two timestamps.
Scrub Smarter, Not longer. 😎
ZFS has long struggled with mixing different-sized drives in the same pool.
HexOS partnered with Klara to develop ZFS AnyRaid, a new vdev type enabling mixed-drive layouts with up to 33% higher usable capacity—without compromising ZFS integrity.
Read more → na3.hubs.ly/y0k7Bf0
EU data sovereignty without vendor lock-in?
Join Allan Jude, Co-founder and Head of Solutions Architect, and Eirik Øverby, Chief Operations Officer, to discuss why Modirum chose ZFS for secure, sovereign storage.
March 18, 11AM EDT
RSVP → na3.hubs.ly/y0k7Q00
Thanks to everyone who joined our webinar on Modern VDI on Proxmox: ZFS Reliability and GPU Acceleration at Lower Cost!
Allan Jude and Wendell Wilson shared real-world guidance on building reliable, GPU-accelerated VDI with Proxmox and ZFS.
Watch the recording here → na3.hubs.ly/y0kbVM0
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
Building storage that scales without sacrificing reliability takes more than raw performance.
Our latest OpenZFS whitepaper explores how teams use OpenZFS to design secure, high-performance infrastructure — with real-world examples and best practices you can apply today.
👉 lnkd.in/ekZYmEAx
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
Enterprise-grade storage doesn’t have to mean enterprise lock-in.
This article breaks down how ZFS on Proxmox delivers snapshots, replication, and data integrity—without proprietary arrays or Ceph complexity.
👉 Read: klarasystems.com/articles/bui...
ZFS shines when you scale up.
Add drives, boost performance, done.
Run it inside the hypervisor and you get local I/O with way lower latency.
Watch the full recording: klarasystems.com/webinars/zfs...
⏳ 1 week left.
Don't forget to save up to 35% on your first year of ZFS Enterprise Infrastructure Support when you sign by Feb 17.
Direct access to OpenZFS experts for production systems—at a limited-time discount.
👉 na3.hubs.ly/y0jDjt0
HexOS faced stranded capacity with traditional ZFS vdevs. Partnering with Klara, they created ZFS AnyRaid, enabling mixed-drive layouts with 20–33% more usable capacity, lower-cost upgrades, full ZFS reliability, and simplified storage management.
🔗 Read more: klarasystems.com/content/http...
Our webinar is 1 week away!
Allan Jude from Klara Inc. and Wendell Wilson from Level1techs will talk about how to build GPU-accelerated modern VDI on Proxmox and ZFS without software lock-in or licensing sprawl.
📅 Feb 18, 8AM PST | 11AM EST
RSVP: na3.hubs.ly/y0jDhV0
For Proxmox workloads, pool and VDEV topology is the architecture.
Mirrors vs RAID-Z, SLOG, ARC/L2ARC, and recordsize choices define VM performance, resiliency, and failure behavior. We break down how to design ZFS pools that actually match Proxmox workloads.👇
na3.hubs.ly/y0jD4p0
#ZFS #Proxmox
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
ZFS 2.4 introduced zfs rewrite, a clean way to reapply dataset settings to existing data.
Rewrite a file or directory in place, and ZFS treats it like the data was rewritten with itself.
Want more details? Watch the OpenZFS 2.4 webinar recording: klarasystems.com/webinars/new...
Meet Wendell Wilson — Founder & Lead Architect at Level1Techs.
Wendell will be joining Klara for our upcoming webinar to discuss modern VDI on Proxmox, including ZFS reliability and GPU acceleration—without enterprise complexity or cost.
👉 Register now na3.hubs.ly/y0hnbd0
Teams are rethinking where their critical systems live. OpenZFS stands out in production—open source, proven at scale, no licensing traps—but expert support matters. Save up to 35% on Klara’s OpenZFS support through Feb 17, 2026. Get tuning and long-term support: na3.hubs.ly/y0hn9K0
04.02.2026 22:29 — 👍 2 🔁 2 💬 0 📌 0
A ZFS pool can be “healthy” and still put your data at risk.
In our newest article, we break down how to actually monitor OpenZFS systems, from scrubs and zpool status to automated snapshot, health, and capacity monitoring using Sanoid.
👉 Read more: https://na3.hubs.ly/y0hmYv0
We hope you've been enjoying the new OpenZFS 2.4 release!
2.4 brought significant performance optimizations, enhanced data security, and improved hardware support for Linux (up to 6.18) and FreeBSD (14-16).
Whats your favorite new feature?
After expanding a vdev or changing compression settings, existing data won’t automatically rebalance.
A ZFS rewrite lets you update selected files in place—applying new allocation and compression properties without moving data off the system.
Self-service restores = real time savings.
With .zfs/snapshot, users can recover their own files—no backup tickets, no admin intervention. One less call when that critical Excel file breaks.
For more ZFS tips and tricks, tune into the webinar recording:: https://bit.ly/4oY29L3
Modern VDI without fragile storage or enterprise price tags.
Join Klara & @level1techs.bsky.social to talk Proxmox, ZFS reliability, and GPU-accelerated VDI—built on open infrastructure that actually scales.
Feb 18, 8AM PT | 11AM ET
👉 Register here https://na3.hubs.ly/y0gZfC0
ZFS and Btrfs look similar on a feature list. In production, they behave very differently.
This article breaks down the architectural choices that affect reliability, RAID safety, and long-term data integrity.
👉 https://bit.ly/4q5WQd5
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
Fastmail runs a globally active email platform with tens of millions of small files on NVMe-backed OpenZFS. When unexpected CPU and memory behavior appeared under real production load, they turned to Klara for help!
👉 Read the full case study: https://bit.ly/4pSpvCo
🎉 Our next webinar starts soon!
Join Allan Jude & Paul Dagnelie for our ZFS 2.4 webinar, covering performance updates, stability improvements, and practical operational guidance. Don’t miss out.
⏰ Starting in 1 hour!
👉 Join the webinar: https://bit.ly/3MRm4hk
