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#zfs

9 posts9 participants0 posts today
Eva Winterschön<p>I 💝 OpenZFS</p><p>Working on research for a HPC storage cluster, one of my architecture doc sections quote this information from the wonderful group at Klara:</p><p>&gt; OpenZFS In the Wild<br>&gt;<br>&gt; .. Lawrence Livermore National Laboratory (LLNL) undertook porting ZFS to Linux, to form the backbone of their Lustre distributed filesystem. They noted that OpenZFS facilitated building a storage system that could support 1 terabyte per second of data transfer at less than half the cost of any alternative filesystem.<br>&gt; <br>&gt; Based on the success seen at LLNL, Los Alamos National Laboratory (LANL) started using ZFS as well. <br>&gt; <br>&gt; In the latest example, just a few months ago the U.S. Department of Energy’s Oak Ridge National Laboratory announced it had built Frontier, the world’s first exascale supercomputing system and currently the fastest computer in the world, backed by Orion, the massive 700 Petabyte ZFS based file system that supports it. This impressive system contains nearly 48,000 hard drives and 5,400 NVMe devices for primary storage, and another 480 NVMe just for metadata.</p><p><a href="https://klarasystems.com/articles/openzfs-openzfs-for-hpc-clusters/#:~:text=built%C2%A0Frontier%2C%20the%20world%E2%80%99s%20first%20exascale,480%20NVMe%20just%20for%20metadata" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">klarasystems.com/articles/open</span><span class="invisible">zfs-openzfs-for-hpc-clusters/#:~:text=built%C2%A0Frontier%2C%20the%20world%E2%80%99s%20first%20exascale,480%20NVMe%20just%20for%20metadata</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/openzfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>openzfs</span></a> <a href="https://mastodon.bsd.cafe/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zfs</span></a> <a href="https://mastodon.bsd.cafe/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freebsd</span></a> <a href="https://mastodon.bsd.cafe/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>linux</span></a> <a href="https://mastodon.bsd.cafe/tags/engineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>engineering</span></a> <a href="https://mastodon.bsd.cafe/tags/supercomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>supercomputing</span></a> <a href="https://mastodon.bsd.cafe/tags/hpc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hpc</span></a></p>
Michael Lucas :flan_set_fire:<p>The new edition of "Networking for System Administrators" went live on <a href="https://io.mwl.io/tags/Kickstarter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Kickstarter</span></a> today.</p><p>Next stretch goal: everyone gets a bonus <a href="https://io.mwl.io/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> book. <a href="https://io.mwl.io/tags/n4sa2e" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>n4sa2e</span></a> <a href="https://io.mwl.io/tags/sysadmin" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sysadmin</span></a> </p><p><a href="https://mwl.io/ks" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">mwl.io/ks</span><span class="invisible"></span></a></p>
Stefano Marinelli<p>8 days to go!<br>A NetBSD server running since 2010 - uptime and reliability story.</p><p><a href="https://it-notes.dragas.net/2023/08/27/that-old-netbsd-server-running-since-2010/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2023/08/27</span><span class="invisible">/that-old-netbsd-server-running-since-2010/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Jaap de Vos<p>ZFS webinar by Klara Systems coming up this Thursday (18th September 2025):<br><a href="https://klarasystems.com/webinars/zfs-basecamp-launch-panel-people-behind-zfs/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">klarasystems.com/webinars/zfs-</span><span class="invisible">basecamp-launch-panel-people-behind-zfs/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zfs</span></a> <a href="https://mastodon.bsd.cafe/tags/filesystem" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>filesystem</span></a> <a href="https://mastodon.bsd.cafe/tags/klarasystems" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>klarasystems</span></a></p>
Łukasz Bromirski :unverified:<p>Kids, do backups. Proper ones - 3-2-1. Some of you may never had chance to work with "spinners" (mechanical disk drives). They typically gave you time to migrate your data out. SSD dies immediately and then it's just gone. Pictured here is 4TB of VMs from under FreeBSD bhyve NAS server. It was there happily kicking ass at 20:09:09. It was gone by 20:09:11. <a href="https://infosec.exchange/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zfs</span></a> <a href="https://infosec.exchange/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freebsd</span></a> <a href="https://infosec.exchange/tags/backups" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>backups</span></a> <a href="https://infosec.exchange/tags/redundancy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>redundancy</span></a></p>
CryptGoat<p>Does anyone here run a fully encrypted <a href="https://fedifreu.de/tags/ProxmoxVE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ProxmoxVE</span></a> installation and can share their experiences? Going for a full <a href="https://fedifreu.de/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> installation with encrypted pools looks like a likely variant... :thinking_rotate: </p><p><a href="https://fedifreu.de/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Linux</span></a> <a href="https://fedifreu.de/tags/Virtualization" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Virtualization</span></a></p>
Stefano Marinelli<p>NetBSD-powered CDN: caching, TLS and performance on a shoestring.</p><p><a href="https://it-notes.dragas.net/2024/09/03/make-your-own-cdn-netbsd/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/09/03</span><span class="invisible">/make-your-own-cdn-netbsd/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Fink :antifa:ZFS issue
Stefano Marinelli<p>12 days to go!</p><p>Same concept on OpenBSD: WireGuard + PF + ad-blocking included.<br><a href="https://it-notes.dragas.net/2023/04/03/make-your-own-vpn-wireguard-ipv6-and-ad-blocking-included/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2023/04/03</span><span class="invisible">/make-your-own-vpn-wireguard-ipv6-and-ad-blocking-included/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Stefano Marinelli<p>13 days to go!<br>WireGuard + IPv6 + ad-blocking on FreeBSD – private, secure, minimal.</p><p><a href="https://it-notes.dragas.net/2023/09/23/make-your-own-vpn-freebsd-wireguard-ipv6-and-ad-blocking-included/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2023/09/23</span><span class="invisible">/make-your-own-vpn-freebsd-wireguard-ipv6-and-ad-blocking-included/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Stefano Marinelli<p>14 days to go!<br>Benchmarks: FreeBSD bhyve vs Proxmox (KVM) – strengths and trade-offs.</p><p><a href="https://it-notes.dragas.net/2024/06/10/proxmox-vs-freebsd-which-virtualization-host-performs-better/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/06/10</span><span class="invisible">/proxmox-vs-freebsd-which-virtualization-host-performs-better/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Stefano Marinelli<p>15 days to go!</p><p>Forging a FreeBSD backup stronghold with ZFS, jails and send/recv.</p><p><a href="https://it-notes.dragas.net/2025/07/29/make-your-own-backup-system-part-2-forging-the-freebsd-backup-stronghold/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2025/07/29</span><span class="invisible">/make-your-own-backup-system-part-2-forging-the-freebsd-backup-stronghold/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Stefano Marinelli<p>16 days to go!</p><p>FreeBSD tips: native read-only root filesystem, simple and effective.</p><p><a href="https://it-notes.dragas.net/2024/05/31/freebsd-tips-and-tricks-native-ro-rootfs/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/05/31</span><span class="invisible">/freebsd-tips-and-tricks-native-ro-rootfs/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Stefano Marinelli<p>17 days to go!<br>The story of migrating an entire server from Proxmox to FreeBSD.</p><p><a href="https://it-notes.dragas.net/2024/10/21/from-proxmox-to-freebsd-story-of-a-migration/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/10/21</span><span class="invisible">/from-proxmox-to-freebsd-story-of-a-migration/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
BSDTV<p>A new BSDCan video has been posted:<br>ZFS Direct IO Benchmarking Pitfalls by Mateusz Piotrowski</p><p><a href="https://youtu.be/tYCN8Yg-0JQ" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/tYCN8Yg-0JQ</span><span class="invisible"></span></a></p><p>Not too long ago, support for direct IO landed in OpenZFS after years of discussions and reviews. We truly live in the future where we can finally reject complicated caching and fully embrace the unbuffered conversations with our disks. Or can we really?</p><p>Those of you who know a bit about ZFS know that the ARC is actually pretty important (without one ZFS would historically stand for zzz 😴 instead of Zetta). How could it be then that skipping the ARC might improve performance?</p><p>During the presentation we will discuss what workloads and setups benefit from direct IO, what its limitations are, and what pitfalls to avoid during benchmarking. We will also look at the implementation to understand how all the promises of stability and compatibility were kept.</p><p>Direct IO is reported to deliver amazing performance boosts in some deployments. Understanding how not to hold it wrong is a great first step to potentially unlocking that speed-up on your systems too!</p><p>For more information, please visit:<br><a href="https://www.bsdcan.org/2025/" rel="nofollow noopener" target="_blank"><span class="invisible">https://www.</span><span class="">bsdcan.org/2025/</span><span class="invisible"></span></a><br>- and -<br><a href="https://www.bsdcan.org/2025/timetable/timetable-ZFS-Direct-IO.html" rel="nofollow noopener" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bsdcan.org/2025/timetable/time</span><span class="invisible">table-ZFS-Direct-IO.html</span></a></p><p><a href="https://bsd.network/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zfs</span></a> <a href="https://bsd.network/tags/benchmarking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>benchmarking</span></a> <a href="https://bsd.network/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freebsd</span></a></p>
Stefano Marinelli<p>19 days to go!<br>How to install FreeBSD on providers that don’t support it, using mfsBSD.</p><p><a href="https://it-notes.dragas.net/2025/07/02/install_freebsd_providers_mfsbsd/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2025/07/02</span><span class="invisible">/install_freebsd_providers_mfsbsd/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
gyptazySylve is a new and very promising bhyve and jail manager for FreeBSD - coming with clustering support and a pretty nice and modern web ui which is alike the <a href="https://gyptazy.com/fedi?t=proxmox" class="mention hashtag" rel="nofollow noopener" target="_blank">#Proxmox</a> one. I had a closer look at it... And I'm amazed!<br><br><a href="https://gyptazy.com/fedi?t=sylve" class="mention hashtag" rel="nofollow noopener" target="_blank">#sylve</a> <a href="https://gyptazy.com/fedi?t=freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsd</a> <a href="https://gyptazy.com/fedi?t=jail" class="mention hashtag" rel="nofollow noopener" target="_blank">#jail</a> <a href="https://gyptazy.com/fedi?t=jails" class="mention hashtag" rel="nofollow noopener" target="_blank">#jails</a> <a href="https://gyptazy.com/fedi?t=bhyve" class="mention hashtag" rel="nofollow noopener" target="_blank">#bhyve</a> <a href="https://gyptazy.com/fedi?t=vm" class="mention hashtag" rel="nofollow noopener" target="_blank">#vm</a> <a href="https://gyptazy.com/fedi?t=virtualization" class="mention hashtag" rel="nofollow noopener" target="_blank">#virtualization</a> <a href="https://gyptazy.com/fedi?t=manager" class="mention hashtag" rel="nofollow noopener" target="_blank">#manager</a> <a href="https://gyptazy.com/fedi?t=ipv6" class="mention hashtag" rel="nofollow noopener" target="_blank">#ipv6</a> <a href="https://gyptazy.com/fedi?t=zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#zfs</a> <a href="https://gyptazy.com/fedi?t=opensource" class="mention hashtag" rel="nofollow noopener" target="_blank">#opensource</a> <a href="https://gyptazy.com/fedi?t=runbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#runbsd</a> <a href="https://gyptazy.com/fedi?t=blog" class="mention hashtag" rel="nofollow noopener" target="_blank">#blog</a> <a href="https://gyptazy.com/fedi?t=devops" class="mention hashtag" rel="nofollow noopener" target="_blank">#devops</a> <a href="https://gyptazy.com/fedi?t=go" class="mention hashtag" rel="nofollow noopener" target="_blank">#go</a> <a href="https://gyptazy.com/fedi?t=golang" class="mention hashtag" rel="nofollow noopener" target="_blank">#golang</a> <a href="https://gyptazy.com/fedi?t=cluster" class="mention hashtag" rel="nofollow noopener" target="_blank">#cluster</a> <a href="https://gyptazy.com/fedi?t=freebsdcluster" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsdcluster</a> <a href="https://gyptazy.com/fedi?t=bhyvecluster" class="mention hashtag" rel="nofollow noopener" target="_blank">#bhyvecluster</a><br><br><a href="https://gyptazy.com/blog/sylve-a-proxmox-alike-webui-for-bhyve-on-freebsd/" rel="nofollow noopener" target="_blank">https://gyptazy.com/blog/sylve-a-proxmox-alike-webui-for-bhyve-on-freebsd/</a><br><br>
Stefano Marinelli<p>20 days to go!</p><p>Guide: Move an entire FreeBSD installation to a new host or VM with ZFS send/recv.<br><a href="https://it-notes.dragas.net/2024/09/16/moving-freebsd-installation-new-host-vm/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/09/16</span><span class="invisible">/moving-freebsd-installation-new-host-vm/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
Marce Coll<p>Last night I started work on a personal CI system for my <a href="https://functional.cafe/tags/omnios" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>omnios</span></a> ( <a href="https://functional.cafe/tags/illumos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>illumos</span></a> ) server by (ab)using zones and <a href="https://functional.cafe/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zfs</span></a> . I'm so tired of having to rebuild everything from scratch every time, download every package, populate 12GB of caches to run 30 seconds of unit tests.</p><p><a href="https://github.com/MarceColl/renzokutai" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">github.com/MarceColl/renzokutai</span><span class="invisible"></span></a></p><p>It's very much a broken WIP but it's slooowly taking shape.</p>
Stefano Marinelli<p>21 days to go!<br>How we ditched Kubernetes and regained sanity with FreeBSD.</p><p><a href="https://it-notes.dragas.net/2024/07/04/from-cloud-chaos-to-freebsd-efficiency/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">it-notes.dragas.net/2024/07/04</span><span class="invisible">/from-cloud-chaos-to-freebsd-efficiency/</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/EuroBSDConAdvent" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDConAdvent</span></a> <a href="https://mastodon.bsd.cafe/tags/EuroBSDCon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EuroBSDCon</span></a> <a href="https://mastodon.bsd.cafe/tags/BSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BSD</span></a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreeBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NetBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/DragonFlyBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DragonFlyBSD</span></a> <a href="https://mastodon.bsd.cafe/tags/ZFS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZFS</span></a> <a href="https://mastodon.bsd.cafe/tags/PF" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PF</span></a> <a href="https://mastodon.bsd.cafe/tags/RunBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RunBSD</span></a></p>
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