Zfs on Besterry — Linux & DevOps Noteshttps://besterry.com/tags/zfs/Recent content in Zfs on Besterry — Linux & DevOps NotesHugoen-usMon, 02 Sep 2024 00:00:00 +0000ZFS on Linux: Six Months of Production Usehttps://besterry.com/posts/zfs-on-linux/Mon, 02 Sep 2024 00:00:00 +0000https://besterry.com/posts/zfs-on-linux/<p>Migrated our build server array from ext4+mdadm to ZFS on Linux six months ago. Here&rsquo;s what I learned.</p> <h2 id="why-zfs">Why ZFS</h2> <ul> <li>Checksumming catches silent data corruption (we found 14 affected files on the old array)</li> <li>Snapshots are cheap and instant (100ms for a 10TB dataset)</li> <li>Compression often makes things faster — less I/O, more CPU</li> <li>Send/receive for efficient replication</li> <li>No separate mdadm/LVM layer to debug</li> </ul> <h2 id="pool-design">Pool design</h2> <p>For the build server, 6 x 4TB NVMe in RAIDZ2:</p>