Klara Inc
klarainc.bsky.social
Klara Inc
@klarainc.bsky.social
200 followers 95 following 200 posts
Experts in #FreeBSD, #ZFS, and Embedded/ARM #opensource https://klarasystems.com
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👻Every sysadmin has a horror story.

Allan Jude and JT told us about “The Shrinking zvol” — a 250TB volume that became 20TB with a single wrong command.

ZFS is powerful… but it demands respect.

Always double-check your pool names!
#OpenZFS #ZFS #DataHorrorStories #KlaraSystems #Halloween
Join Allan Jude & Michael W. Lucas for our upcoming webinar - ZFS Mastery: The Bits They Don’t Put in the Man Pages.

🗓️ Nov 19 | ⏰ 11 AM EST
Real tuning, production lessons, & design insights you won’t find in the manuals.

🔗 https://bit.ly/4naUF6F
#ZFS #OpenZFS #Webinar
We had a great time at #OpenZFS User & Developer Summit! Thanks to everyone who joined our sessions and shared ideas.

A special congratulations to those who participated in the hackathon - and congratulations to the winners!

Tune into the recording: https://bit.ly/48UJCes
#ZFS #OpenZFS
Build a ZFS pool that keeps running — even when hardware doesn’t.

Our latest article walks through setting up ZFS with iSCSI — covering configuration, networking, and mirroring for reliable FreeBSD storage.

Read the guide: https://bit.ly/4npvr4t
Remember when OpenZFS first launched back in 2013?

A single codebase, bridging communities across Solaris, FreeBSD, Linux, and beyond — a turning point for open storage.

How long have you been running OpenZFS?

Learn more about OpenZFS and its origin story: https://bit.ly/48WPpQJ
Klara Inc - Introduction to OpenZFS 2.0
During this webinar on OpenZFS, Allan Jude will take you through the the changes that make OpenZFS 2.0 such a powerful release. Here are some of the points we’ll cover in our upcoming webinar: - What’s new in OpenZFS 2.0 - How does OpenZFS 2.0 impact e...
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Tomorrow’s the day! The Klara team joins the OpenZFS User & Developer Summit with three developer presentations:
- 10 AM – AnyRAID with Paul Dagnelie
- 1 PM – ZFS Large Label & Blockpointer-V2 with Allan Jude
- 2:30 PM – QLC NAND

Don't miss out!
#OpenSource #OpenZFS #Storage #OpenZFSSummit
Klara’s at the OpenZFS User and Developer Summit this weekend!

This event is an annual event that brings together the OpenZFS user and developer community for a mix of discussions, presentations, and hands-on work.

Come chat with us!
Learn more: https://bit.ly/3J7WbbH
Another great session in the books!

Allan Jude and JT broke down what it really takes to run ZFS on Proxmox efficiently.
Big thanks to everyone who joined live, asked questions, and shared their experiences.

📺 Couldn’t make it?
Tune into the recording: https://bit.ly/3WjhAll
#ZFS #Proxmox #OpenZFS
We’re live in 1 hour! ⏰

Running Proxmox with ZFS? Don’t miss Allan Jude & JT Pennington sharing real-world tuning, caching, and replication strategies.

Build efficient, resilient storage that performs at scale.

Join us live → https://bit.ly/4o6p9aD
#ZFS #Proxmox
Throughput isn’t everything.

IOPS, latency, throughput — what do these storage metrics really tell you about performance?

Read our latest blog: https://bit.ly/471Kk8g

#ZFS #OpenZFS #Storage
Ever wonder who ran that command? 🕵️
With zpool history, you’ll have a full log of recent pool activity. Perfect for audits and troubleshooting!
Klara’s is going to the OpenZFS Developer Summit and will be presenting!
- 10 AM – AnyRaid with Paul Dagnelie
- 1 PM-1:50 PM – Large Label & Blockpointer-V2 with Allan Jude
- 2:30 PM – QLC NAND: When the hardware needs help from the filesystem with Allan Jude
Learn More: https://bit.ly/3J7WbbH
What has surprised you most about ZFS's evolution?

When Oracle acquired Sun and closed the ZFS source code, the community didn’t back down — it regrouped 💪. Matt reflects on how ZFS evolved from a closed walls to a truly multilateral open source project. 🚀

Watch more: https://bit.ly/4qoUp6W
#ZFS
⏳ Just 1 week away!
Join Klara’s Allan Jude & JT Pennington for ZFS on Proxmox: Performance & Efficiency Best Practices.

They’ll cover tuning ZFS for performance, optimizing compression & caching, and setting up efficient replication — all tailored for Proxmox environments.
🔗 https://bit.ly/3IPCgOE
Proxmox + ZFS = enterprise-grade storage.

it’s enterprise-grade storage with fewer moving parts than Ceph and more flexibility than vendor arrays. Learn why ZFS is different, where it fits vs. other solutions, and how to design it for Proxmox.

👉 Read more: https://bit.ly/42Ia9rl
🎙 Meet the Speakers for our upcoming webinar ZFS in Proxmox, Allan Jude and JT Pennington!

Together they’ll walk through how to get the most from ZFS in Proxmox: performance tuning, caching strategies, replication workflows, and more.

📅 Thursday, October 23rd
🔗: https://bit.ly/4qbkOom
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
Need a safety net?

With `zfs snapshot pool/fs@now`, you get instant, space-efficient snapshots. Perfect for testing changes, rolling back, or simply keeping peace of mind that your data is protected.
Running Proxmox with ZFS? Join our live webinar to learn real-world tuning, caching & replication strategies from Allan Jude & JT Pennington. Build efficient, resilient storage that performs at scale. Register here: https://bit.ly/4mPYDBq
#ZFS #Proxmox #OpenSource
ZFS snapshots, clones, and bookmarks aren’t just features—they’re the backbone of advanced dataset management. Learn how they deliver resilience, agility, and efficient replication in our latest blog. 🔗 https://bit.ly/4q2pA7A
Advanced ZFS Dataset Management: Snapshots, Clones, and Bookmarks
Learn how ZFS handles dataset management with snapshots, clones, and bookmarks—tools that enable reliable backups, efficient replication, and flexible testing without data risk.
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Need full visibility into your ZFS datasets?

zfs get all pool/fs shows every property—default and custom—so you always know exactly how your dataset is configured. A simple command, powerful insight.
We had a great time at EuroBSDcon 2025 in Zagreb!

We loved connecting with the BSD community, sharing insights & learning from those shaping open source. Thanks to all who joined the conversations, and see you next time! #EuroBSDcon #BSD #OpenSource
ZFS + Proxmox = enterprise-grade storage.

Join Allan Jude & JT Pennington for a live session on:
⚡ Tuning ZFS for performance
📦 Compression & caching strategies
🔄 Replication workflows
🛠 Pitfalls to avoid

📅 Thursday, October 23rd
🔗 Register: https://bit.ly/4nHSfxa
ZFS offers ARC, L2ARC & SLOG for caching + write latency, but tuning isn’t one-size-fits-all. Our latest dives into when adjustments help—and when they harm. Stability starts with understanding.
Read here: https://bit.ly/4gNMrj7