https://stream.echo6.co/videos/watch/07896f73-8a70-4668-b022-bb0c167f332c https://lawrence.video/ In this video, I’m joined by ZFS expert Allan Jude with Klara Systems to discuss some very technical details of ZFS: Fine-tuning alignments for performance, Drive considerations, Exciting new developments like ZFS working with containers, The roadmap to getting more performance from NVMe drives, Klara Systems OpenZFS Horror Stories: https://klarasystems.com/webinars/openzfs-horror-stories/ Klara Systems Isolating Containers with ZFS and Linux Namespaces: https://klarasystems.com/articles/isolating-containers-with-zfs-and-linux-namespaces/ Connect With UsHire Us for a project: https://lawrencesystems.com/hire-us/, Toms' Twitter 🐦 https://twitter.com/TomLawrenceTech, Our Website https://www.lawrencesystems.com/, Our Forums https://forums.lawrencesystems.com/, Instagram https://www.instagram.com/lawrencesystems/, Facebook https://www.facebook.com/Lawrencesystems/, GitHub https://github.com/lawrencesystems/ Lawrence Systems Shirts and Swag, ►👕 https://lawrence.video/swag/ AFFILIATES & REFERRAL LINKSAmazon Affiliate Store 🛒 https://www.amazon.com/shop/lawrencesystemspcpickup UniFi Affiliate Link 🛒 https://lawrence.video/unifi-affiliate All Of Our Affiliates help us out and can get you discounts! 🛒 https://lawrencesystems.com/partners-we-love/ Gear we use on Kit 🛒 https://kit.co/lawrencesystems Use OfferCode LTSERVICES to get 10% off your order at 🛒 https://www.techsupplydirect.com?aff=2 Digital Ocean Offer Code 🛒 https://m.do.co/c/85de8d181725 HostiFi UniFi Cloud Hosting Service 🛒 https://hostifi.net/?via=lawrencesystems Protect your privacy with a VPN from Private Internet Access 🛒 https://www.privateinternetaccess.com/pages/buy-vpn/LRNSYS Patreon 💰 https://www.patreon.com/lawrencesystems Chapters 00:00 Intro – ZFS mistakes, snapshots & recovery questions 01:03 ZFS Expansion – why the slow, careful rollout 02:28 Testing new features – prebuilt Ubuntu master packages 03:16 Block Reference Tree & cloning – VMs and synthetic full backups 04:02 Dedup reality – benefits, costs & scaling limits 07:40 Shorn writes – partial file writes & corruption 09:14 Crash recovery model – TXGs vs fsck 10:14 5-second TXGs – batching changes to cut write amplification 10:37 SLOG/Intent Log – when it helps and when it doesn’t 12:45 Databases & sync writes – when durability really matters 14:23 Mirrors, failure patterns – HDD noise vs SSD “sudden death” 15:55 RAIDZ straggler detection – bypassing slow disks 17:26 1 PB museum design – off-site real-time replica with ZFS send 18:23 Tuning TXGs – should you change the 5s default? trade-offs 22:27 ZIL on main devices – NVMe pools and million-IOPS reality 23:38 CPU vs device latency – when optimizations don’t pay 24:50 NVMe queues & queue depth – feeding 64×64 command lanes 27:04 ZFS overhead – checksums, compression & memory bandwidth 34:59 NFS recordsize mismatch – why 64K broke 128K records 36:39 Zero reads/writes & checksums – integrity side effects 38:55 Design for worst-case – scrub under load, still hit targets 40:29 Mirrors vs RAIDZ – IOPS math and efficiency trade-offs 42:23 HA split-brain import – TXG rewind to limit damage 44:26 Why rewind works – block pointers across drives 48:05 Too many datasets/snapshots – send/receive indexing costs 50:35 Copy-on-write saves the day – rewinding TXGs 51:42 Delegating datasets to containers – LXD/Docker with ZFS Wed, 15 Apr 2026 09:24:56 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/07896f73-8a70-4668-b022-bb0c167f332c All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.