Klara Inc
@klarainc.bsky.social
Experts in #FreeBSD, #ZFS, and Embedded/ARM #opensource https://klarasystems.com
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
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
January 23, 2026 at 4:20 PM
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
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
👉 Read the full case study: https://bit.ly/4pSpvCo
January 22, 2026 at 10:00 PM
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
👉 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
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
January 22, 2026 at 3:00 PM
🎉 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
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
ZFS in production exposes problems you won’t see at small scale.
This article covers real-world deployment patterns, common pitfalls, and the practices needed to keep ZFS reliable as systems grow.
👉 Read the full article and avoid costly mistakes: https://bit.ly/49LapZk
This article covers real-world deployment patterns, common pitfalls, and the practices needed to keep ZFS reliable as systems grow.
👉 Read the full article and avoid costly mistakes: https://bit.ly/49LapZk
January 21, 2026 at 6:35 PM
ZFS in production exposes problems you won’t see at small scale.
This article covers real-world deployment patterns, common pitfalls, and the practices needed to keep ZFS reliable as systems grow.
👉 Read the full article and avoid costly mistakes: https://bit.ly/49LapZk
This article covers real-world deployment patterns, common pitfalls, and the practices needed to keep ZFS reliable as systems grow.
👉 Read the full article and avoid costly mistakes: https://bit.ly/49LapZk
We get great questions during our webinars and sometimes we don't answer all of them. Allan Jude answers them here in our follow up Q&A session—covering non-ZFS backups, multi-tenant security, and ZVOL tuning for virtualized environments.
👉 https://bit.ly/4jSgBU0
👉 https://bit.ly/4jSgBU0
January 20, 2026 at 9:00 PM
We get great questions during our webinars and sometimes we don't answer all of them. Allan Jude answers them here in our follow up Q&A session—covering non-ZFS backups, multi-tenant security, and ZVOL tuning for virtualized environments.
👉 https://bit.ly/4jSgBU0
👉 https://bit.ly/4jSgBU0
Keep a close eye on your ZFS pool health with Sanoid monitoring.
The `sanoid --monitor-health` command reports on the health of your vdevs, and all of your zpools—conveniently designed to integrate with whatever monitoring system you use.
The `sanoid --monitor-health` command reports on the health of your vdevs, and all of your zpools—conveniently designed to integrate with whatever monitoring system you use.
January 20, 2026 at 11:36 AM
Keep a close eye on your ZFS pool health with Sanoid monitoring.
The `sanoid --monitor-health` command reports on the health of your vdevs, and all of your zpools—conveniently designed to integrate with whatever monitoring system you use.
The `sanoid --monitor-health` command reports on the health of your vdevs, and all of your zpools—conveniently designed to integrate with whatever monitoring system you use.
🔒 Protect critical ZFS snapshots! Like a lockout tag on machinery, the ZFS hold feature lets you put holds on snapshots to prevent accidental deletion—even in automated workflows
For more tips and tricks, tune into the webinar recording: https://bit.ly/4qebJKV
For more tips and tricks, tune into the webinar recording: https://bit.ly/4qebJKV
January 19, 2026 at 8:00 PM
🔒 Protect critical ZFS snapshots! Like a lockout tag on machinery, the ZFS hold feature lets you put holds on snapshots to prevent accidental deletion—even in automated workflows
For more tips and tricks, tune into the webinar recording: https://bit.ly/4qebJKV
For more tips and tricks, tune into the webinar recording: https://bit.ly/4qebJKV
Running OpenZFS in production?
Klara’s ZFS Infrastructure Support gives you direct access to experienced ZFS engineers for tuning, troubleshooting, upgrades, and best practices. Save up to 35% when you sign by Jan 31, 2026
👉 https://bit.ly/3YxU3xV
Klara’s ZFS Infrastructure Support gives you direct access to experienced ZFS engineers for tuning, troubleshooting, upgrades, and best practices. Save up to 35% when you sign by Jan 31, 2026
👉 https://bit.ly/3YxU3xV
January 16, 2026 at 3:50 PM
Running OpenZFS in production?
Klara’s ZFS Infrastructure Support gives you direct access to experienced ZFS engineers for tuning, troubleshooting, upgrades, and best practices. Save up to 35% when you sign by Jan 31, 2026
👉 https://bit.ly/3YxU3xV
Klara’s ZFS Infrastructure Support gives you direct access to experienced ZFS engineers for tuning, troubleshooting, upgrades, and best practices. Save up to 35% when you sign by Jan 31, 2026
👉 https://bit.ly/3YxU3xV
🎉 Just 1 week until our ZFS 2.4 webinar!
Join Allan Jude & Paul Dagnelie to explore performance updates, stability improvements, and operational tips. Don’t miss your chance to start 2026 with confidence.
📅 Jan 22, 8 AM PT | 11 AM ET
👉 Register now https://bit.ly/44AjWAR
Join Allan Jude & Paul Dagnelie to explore performance updates, stability improvements, and operational tips. Don’t miss your chance to start 2026 with confidence.
📅 Jan 22, 8 AM PT | 11 AM ET
👉 Register now https://bit.ly/44AjWAR
January 15, 2026 at 5:05 PM
🎉 Just 1 week until our ZFS 2.4 webinar!
Join Allan Jude & Paul Dagnelie to explore performance updates, stability improvements, and operational tips. Don’t miss your chance to start 2026 with confidence.
📅 Jan 22, 8 AM PT | 11 AM ET
👉 Register now https://bit.ly/44AjWAR
Join Allan Jude & Paul Dagnelie to explore performance updates, stability improvements, and operational tips. Don’t miss your chance to start 2026 with confidence.
📅 Jan 22, 8 AM PT | 11 AM ET
👉 Register now https://bit.ly/44AjWAR
Silent data corruption is one of the most dangerous storage failures. ZFS scrubs verify every block, detect checksum errors, and repair data before damage accumulates. Learn how scrubs work, and how to read zpool status results.
Read the full article: https://bit.ly/4pDQ7a8
Read the full article: https://bit.ly/4pDQ7a8
January 14, 2026 at 6:15 PM
Silent data corruption is one of the most dangerous storage failures. ZFS scrubs verify every block, detect checksum errors, and repair data before damage accumulates. Learn how scrubs work, and how to read zpool status results.
Read the full article: https://bit.ly/4pDQ7a8
Read the full article: https://bit.ly/4pDQ7a8
Why is this ZFS snapshot so big?
In last week’s Klara webinar, we showed how zfs diff reveals exactly what changed—file adds, deletes, overwrites, and more. Perfect for troubleshooting, forensics, and recovery.
▶️ Watch the recording https://bit.ly/4qg2R7o
In last week’s Klara webinar, we showed how zfs diff reveals exactly what changed—file adds, deletes, overwrites, and more. Perfect for troubleshooting, forensics, and recovery.
▶️ Watch the recording https://bit.ly/4qg2R7o
January 13, 2026 at 4:57 PM
Why is this ZFS snapshot so big?
In last week’s Klara webinar, we showed how zfs diff reveals exactly what changed—file adds, deletes, overwrites, and more. Perfect for troubleshooting, forensics, and recovery.
▶️ Watch the recording https://bit.ly/4qg2R7o
In last week’s Klara webinar, we showed how zfs diff reveals exactly what changed—file adds, deletes, overwrites, and more. Perfect for troubleshooting, forensics, and recovery.
▶️ Watch the recording https://bit.ly/4qg2R7o
Automate your ZFS snapshots with Sanoid! 🛠
Save time, reduce risk, and keep your data safe by letting Sanoid handle snapshot creation automatically. Install it easily with:
FreeBSD: sudo pkg install sanoid
Ubuntu: sudo apt install sanoid
Automation makes it simple, reliable, and efficient.
Save time, reduce risk, and keep your data safe by letting Sanoid handle snapshot creation automatically. Install it easily with:
FreeBSD: sudo pkg install sanoid
Ubuntu: sudo apt install sanoid
Automation makes it simple, reliable, and efficient.
January 12, 2026 at 2:32 PM
Automate your ZFS snapshots with Sanoid! 🛠
Save time, reduce risk, and keep your data safe by letting Sanoid handle snapshot creation automatically. Install it easily with:
FreeBSD: sudo pkg install sanoid
Ubuntu: sudo apt install sanoid
Automation makes it simple, reliable, and efficient.
Save time, reduce risk, and keep your data safe by letting Sanoid handle snapshot creation automatically. Install it easily with:
FreeBSD: sudo pkg install sanoid
Ubuntu: sudo apt install sanoid
Automation makes it simple, reliable, and efficient.
ZFS tip from last month’s Klara webinar 💡
Quotas limit how much space users or datasets can consume. Reservations guarantee space will be there when you need it. Learn when to use each—and why it matters.
▶️ Watch the recording for more: https://bit.ly/4asBBhD
Quotas limit how much space users or datasets can consume. Reservations guarantee space will be there when you need it. Learn when to use each—and why it matters.
▶️ Watch the recording for more: https://bit.ly/4asBBhD
January 9, 2026 at 4:19 PM
ZFS tip from last month’s Klara webinar 💡
Quotas limit how much space users or datasets can consume. Reservations guarantee space will be there when you need it. Learn when to use each—and why it matters.
▶️ Watch the recording for more: https://bit.ly/4asBBhD
Quotas limit how much space users or datasets can consume. Reservations guarantee space will be there when you need it. Learn when to use each—and why it matters.
▶️ Watch the recording for more: https://bit.ly/4asBBhD
Discover what’s new in OpenZFS 2.4.
Join Allan Jude and Paul Dagnelie as they walk through the most impactful updates—covering performance, reliability, and when upgrading makes sense for production systems.
Save your spot: https://bit.ly/4qlr1xz
Join Allan Jude and Paul Dagnelie as they walk through the most impactful updates—covering performance, reliability, and when upgrading makes sense for production systems.
Save your spot: https://bit.ly/4qlr1xz
January 8, 2026 at 8:15 PM
Discover what’s new in OpenZFS 2.4.
Join Allan Jude and Paul Dagnelie as they walk through the most impactful updates—covering performance, reliability, and when upgrading makes sense for production systems.
Save your spot: https://bit.ly/4qlr1xz
Join Allan Jude and Paul Dagnelie as they walk through the most impactful updates—covering performance, reliability, and when upgrading makes sense for production systems.
Save your spot: https://bit.ly/4qlr1xz
Optimize your storage with Klara! Our ZFS Infrastructure Support guides you through tuning, documentation, and verifying replication and snapshots—without manual guesswork. Save up to 35% when you sign up by Jan 31.
👉 Learn more about ZFS support from Klara https://bit.ly/4p5UwT1
👉 Learn more about ZFS support from Klara https://bit.ly/4p5UwT1
January 8, 2026 at 5:06 PM
Optimize your storage with Klara! Our ZFS Infrastructure Support guides you through tuning, documentation, and verifying replication and snapshots—without manual guesswork. Save up to 35% when you sign up by Jan 31.
👉 Learn more about ZFS support from Klara https://bit.ly/4p5UwT1
👉 Learn more about ZFS support from Klara https://bit.ly/4p5UwT1
We're excited to announce our cohost Paul Dagnelie to our upcoming webinar!
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more:: https://bit.ly/49h5XSZ
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more:: https://bit.ly/49h5XSZ
January 7, 2026 at 5:06 PM
We're excited to announce our cohost Paul Dagnelie to our upcoming webinar!
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more:: https://bit.ly/49h5XSZ
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more:: https://bit.ly/49h5XSZ
We're excited to announce our cohost Paul Dagnelie to our upcoming webinar!
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more: https://bit.ly/3YyH1jL
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more: https://bit.ly/3YyH1jL
January 6, 2026 at 5:49 PM
We're excited to announce our cohost Paul Dagnelie to our upcoming webinar!
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more: https://bit.ly/3YyH1jL
With over a decade of experience in ZFS, he is a major contributor to a number of areas of the OpenZFS codebase, and a repeat presenter at the OpenZFS Summit.
Learn more: https://bit.ly/3YyH1jL
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
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
January 5, 2026 at 2:55 PM
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
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
Getting replication right on ZFS means avoiding DIY scripts and relying on proven tools like Syncoid, zrepl, and BZFS. They’ve already solved the edge cases so you don’t have to.
Watch the webinar for more tips and tricks → https://bit.ly/4o7QOYs
Watch the webinar for more tips and tricks → https://bit.ly/4o7QOYs
December 30, 2025 at 5:08 PM
Getting replication right on ZFS means avoiding DIY scripts and relying on proven tools like Syncoid, zrepl, and BZFS. They’ve already solved the edge cases so you don’t have to.
Watch the webinar for more tips and tricks → https://bit.ly/4o7QOYs
Watch the webinar for more tips and tricks → https://bit.ly/4o7QOYs
Virtualization isn’t one-size-fits-all—and the right choice can dramatically impact performance.
In this article, we put FreeBSD’s bhyve head-to-head with Linux’s KVM to see how each stacks up across compute and storage workloads.
Read more: https://bit.ly/4pkTX8j
In this article, we put FreeBSD’s bhyve head-to-head with Linux’s KVM to see how each stacks up across compute and storage workloads.
Read more: https://bit.ly/4pkTX8j
December 22, 2025 at 8:51 PM
Virtualization isn’t one-size-fits-all—and the right choice can dramatically impact performance.
In this article, we put FreeBSD’s bhyve head-to-head with Linux’s KVM to see how each stacks up across compute and storage workloads.
Read more: https://bit.ly/4pkTX8j
In this article, we put FreeBSD’s bhyve head-to-head with Linux’s KVM to see how each stacks up across compute and storage workloads.
Read more: https://bit.ly/4pkTX8j
In observance of the holidays, our offices will be closed starting December 22, giving our team time to rest and celebrate with loved ones.
We’ll resume normal operations January 5.
Our team at Klara wishes our community a warm, joyful, and restful holiday season! 🎄✨
We’ll resume normal operations January 5.
Our team at Klara wishes our community a warm, joyful, and restful holiday season! 🎄✨
December 18, 2025 at 8:39 PM
In observance of the holidays, our offices will be closed starting December 22, giving our team time to rest and celebrate with loved ones.
We’ll resume normal operations January 5.
Our team at Klara wishes our community a warm, joyful, and restful holiday season! 🎄✨
We’ll resume normal operations January 5.
Our team at Klara wishes our community a warm, joyful, and restful holiday season! 🎄✨
OpenZFS Dev Summit 2025: AnyRAID VDEVs🎥
Paul Dagnelie explains AnyRAID—an upcoming ZFS VDEV that supports mixed disk sizes, online expansion, rebalance, and contraction, without sacrificing reliability.
Tune into the recording: https://bit.ly/48JpKKQ
Paul Dagnelie explains AnyRAID—an upcoming ZFS VDEV that supports mixed disk sizes, online expansion, rebalance, and contraction, without sacrificing reliability.
Tune into the recording: https://bit.ly/48JpKKQ
AnyRAID VDEVs
From the 2025 OpenZFS User and Developer Summit: https://openzfs.org/wiki/OpenZFS_Developer_Summit_2025
bit.ly
December 17, 2025 at 5:09 PM
OpenZFS Dev Summit 2025: AnyRAID VDEVs🎥
Paul Dagnelie explains AnyRAID—an upcoming ZFS VDEV that supports mixed disk sizes, online expansion, rebalance, and contraction, without sacrificing reliability.
Tune into the recording: https://bit.ly/48JpKKQ
Paul Dagnelie explains AnyRAID—an upcoming ZFS VDEV that supports mixed disk sizes, online expansion, rebalance, and contraction, without sacrificing reliability.
Tune into the recording: https://bit.ly/48JpKKQ
Start the year off right with ZFS 2.4.
Join Allan Jude & Paul Dagnelie for a practical look at what’s new—performance gains, reliability updates, and when upgrading makes sense.
📅 Jan 22, 2026
⏰ 8 AM PT | 11 AM PT
👉 Register now https://bit.ly/3MFnsUn
Join Allan Jude & Paul Dagnelie for a practical look at what’s new—performance gains, reliability updates, and when upgrading makes sense.
📅 Jan 22, 2026
⏰ 8 AM PT | 11 AM PT
👉 Register now https://bit.ly/3MFnsUn
December 16, 2025 at 7:45 PM
Start the year off right with ZFS 2.4.
Join Allan Jude & Paul Dagnelie for a practical look at what’s new—performance gains, reliability updates, and when upgrading makes sense.
📅 Jan 22, 2026
⏰ 8 AM PT | 11 AM PT
👉 Register now https://bit.ly/3MFnsUn
Join Allan Jude & Paul Dagnelie for a practical look at what’s new—performance gains, reliability updates, and when upgrading makes sense.
📅 Jan 22, 2026
⏰ 8 AM PT | 11 AM PT
👉 Register now https://bit.ly/3MFnsUn
🎁 Save up to 35% on ZFS support in 2026!
Sign up by Jan 31 and get access to Klara’s ZFS experts.
✔️ Teams running mission-critical workloads
✔️ Organizations without deep in-house ZFS expertise
✔️ support with incidents, maintenance, tuning, and best-practices
learn more: https://bit.ly/49eoW0v
Sign up by Jan 31 and get access to Klara’s ZFS experts.
✔️ Teams running mission-critical workloads
✔️ Organizations without deep in-house ZFS expertise
✔️ support with incidents, maintenance, tuning, and best-practices
learn more: https://bit.ly/49eoW0v
December 16, 2025 at 3:45 PM
🎁 Save up to 35% on ZFS support in 2026!
Sign up by Jan 31 and get access to Klara’s ZFS experts.
✔️ Teams running mission-critical workloads
✔️ Organizations without deep in-house ZFS expertise
✔️ support with incidents, maintenance, tuning, and best-practices
learn more: https://bit.ly/49eoW0v
Sign up by Jan 31 and get access to Klara’s ZFS experts.
✔️ Teams running mission-critical workloads
✔️ Organizations without deep in-house ZFS expertise
✔️ support with incidents, maintenance, tuning, and best-practices
learn more: https://bit.ly/49eoW0v
ZFS’s send/receive pipeline provides a production-grade mechanism for replicating datasets safely.
By streaming a point-in-time snapshot (zfs send) directly into a target system (zfs receive), you get consistent data transfers with ZFS’s end-to-end integrity model ensuring nothing is lost.
By streaming a point-in-time snapshot (zfs send) directly into a target system (zfs receive), you get consistent data transfers with ZFS’s end-to-end integrity model ensuring nothing is lost.
December 15, 2025 at 2:53 PM
ZFS’s send/receive pipeline provides a production-grade mechanism for replicating datasets safely.
By streaming a point-in-time snapshot (zfs send) directly into a target system (zfs receive), you get consistent data transfers with ZFS’s end-to-end integrity model ensuring nothing is lost.
By streaming a point-in-time snapshot (zfs send) directly into a target system (zfs receive), you get consistent data transfers with ZFS’s end-to-end integrity model ensuring nothing is lost.