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June 2021 FreeBSD Developer Summit: Raid-Z Expansion

FreeBSD · talk · Watch on YouTube

Databases & storageLinux & open-source ecosystemsOperating systems & kernels

What it is

Matt Ahrens presents the FreeBSD Foundation sponsored RAID-Z Expansion project for ZFS at the June 2021 FreeBSD Developer Summit. It explains how a RAID-Z vdev can be grown by adding disks on the fly.

Why Hacker News recommends it

HN points to it as the video explanation of how RAID-Z expansion works without block pointer rewrite.

  • 2 people recommended it
  • 2 different months
  • 0 strong recommendations
  • first 2021, last 2023

What HN commenters said

  1. “For those that like videos more than text, there is a youtube video from last year [1] that explain the feature”

    Explains the RAID-Z expansion feature in video form.

    mrighele, 2022-02 · Recommendation · in “Raid-Z Expansion Feature for ZFS Goes Live”

  2. “See this presentation”

    Presentation detailing how RAID-Z expansion works without block pointer rewrite.

    allanjude, 2023-08 · Recommendation · in “OpenZFS – Incremental add of disks to existing RAIDZ”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: zfs, raid-z, freebsd, storage, matt ahrens

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