Klara Inc

Protect your data with a simple command:
zpool scrub poolname
Finds and fixes silent corruption and errors—before they become real problems.

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

ZFS keeps advancing and a lot of that progress comes from what we see in real-world customer environments.

Our 2025 work includes safer recovery paths, improved RAIDZ performance, and AnyRAID flexibilities.

Read the full article for more: https://bit.ly/3Xx1Hs5

“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

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

Replicate VM datasets between Proxmox nodes using native ZFS tooling.

zfs send -c pool/vmdata@snap | zfs receive backup/vmdata

Compression reduces transfer time, while ZFS checksums ensure what arrives is exactly what you sent.

In observance of Thanksgiving, our offices will be closed on Thursday, November 27, and Friday, November 28, to give our team time to celebrate and recharge with family and friends.

We’ll resume normal operations on Monday, December 1st.

Wishing our community a wonderful Thanksgiving!

Thanks to everyone who joined this week's webinar with Allan Jude and Michael W. Lucas. Tons of practical ZFS knowledge, tuning insights, and production lessons you won’t find in the docs.

Catch the recording here → https://bit.ly/3K4M9bV

Featured webinar speaker alert.🚨

Jim Salter is joining our upcoming webinar.

Author, mercenary sysadmin, Sanoid creator, 2.5 Admins co-host — and a longtime FOSS voice.

If you’re into storage truth, and battle-tested ZFS perspective, this is for you!
Register → https://bit.ly/3JTFvFr

Another webinar! 🎁The 12 Days of ZFS

Allan Jude + Jim Salter are wrapping the year with 12 rapid-fire ZFS tips — performance tuning, bookmarks, snapshots, troubleshooting tricks, and plenty of sysadmin goodies.

🗓️ Dec 10 • 11 AM EST
Register → https://bit.ly/3KbGy3q

DWPD once defined SSD endurance but does it still matter? Our latest blog breaks down how modern NAND, P/E cycles, and vendor specs are reshaping what “drive life” really means.
Read more: https://bit.ly/4i8giDE
#ZFS #KlaraSystems

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

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

A single command like zfs snap pool/vmdata@backup lets you capture a full system state you can roll back to in seconds — no downtime, no duplicate data.
Efficiency, reliability, and simplicity—built right into ZFS.

Turn on fast, transparent compression with zfs set compression=lz4 pool/fs

lz4 compression saves space without slowing down your workloads — giving you more efficient storage and better performance, automatically.
Simple command. Big impact.

We had a great time at the FreeBSD Summit in San Jose!

From deep dives into FreeBSD 15.0 and pkgbase to conversations about real-world deployment challenges, the event was full of insights and collaboration.
Thanks to everyone who connected with us!

Tune into the recording: https://bit.ly/4nRy5QI

Only 1 week to go!

Join Allan Jude and Michael W. Lucas for a session that goes way beyond the man pages—real ZFS tuning, scaling, and design lessons from production.

🗓️ Nov 19 | 11 AM EST
Save your spot → https://bit.ly/4nlF7Nn
#ZFS #OpenZFS

Still trusting your data to hardware RAID? With massive drives and rising URE rates, that’s a gamble.

ZFS fixes RAID’s biggest flaws with checksums, CoW consistency, and quick, block-aware resilvering.

Check out how ZFS steps up where RAID falls short → https://bit.ly/4i6P4gH

In our last month's ZFS on Proxmox webinar: 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: https://bit.ly/3JNDYk3

Even the best storage setups can face unexpected errors.

When ZFS throws unrecoverable errors, zpool status -v points you to the affected files—so you can restore them from backups… You do have backups, right? 😉

Reliable storage starts long before deployment.

Klara helps teams plan ZFS systems that meet real-world needs, from picking the right hardware to tuning existing infrastructure. Solve bottlenecks early and design with confidence

Learn more: https://bit.ly/49Hlv2Z

Klara is at the FreeBSD Summit in San Jose!
We’re excited to connect with other FreeBSD users, developers and contributors from the community.
If you’re at the summit, we’d love to connect!
Learn more: https://bit.ly/49tUmQW

Talkin' ZFS With Allan Jude! ZFS is pretty cool, and we have the man himself Allan Jude here to chat about it with us! Basecamp (learning resource): https://klarasystems.com/zfs-basecamp/ ZFS+Proxmox Webinar: https://klarasystems.com/webinars/zfs-proxmox-performance-efficiency-...

ZFS talk, straight from the source!🚨
Allan Jude joins Level1Techs to cover modern ZFS tuning, dedup, NVMe performance, and why storage design matters more than ever.
Watch the full episode: https://bit.ly/47NmCvL

You can read the man pages—but they won’t tell you this.

Join Allan Jude and Michael W. Lucas as they share hard-won ZFS insights, tuning strategies, and lessons from production.
🗓️ Nov 19 | 11 AM EST

Save your spot: https://bit.ly/47KQnyg
#ZFS #OpenZFS #KlaraSystems #OpenSource

When disaster hits your virtual infrastructure, speed matters.

ZFS snapshots + replication tools like Sanoid and Syncoid make recovery fast and reliable—getting your VMs back in minutes, not hours.

Read more: https://bit.ly/3LpSIWL

We’re thrilled to welcome Michael W. Lucas to our upcoming webinar!

Author of Absolute OpenBSD and DNSSEC Mastery, he’s one of the most respected voices in the FreeBSD and OpenZFS communities—bringing wit, insight, and decades of expertise.

Join us: https://bit.ly/4naUF6F

The 2025 OpenZFS User and Developer Summit in Portland was packed with innovation!

Klara led sessions on cross-cite clustering, AnyRAID and large-label support for modern flash devices.

Catch the full recap 👇
https://bit.ly/3LlNKKz
#OpenZFS #ZFS #OpenSource

Klara is headed to the FreeBSD Summit in San Jose!
Will you be there?

The Summit brings FreeBSD users, developers, and contributors together for sessions on what’s new in FreeBSD 15.0, pkgbase, and more.

Flag us down and connect with us!
Learn more: https://bit.ly/49tUmQW

👻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