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feat(video): Buy Once, Cry Once: How I Wasted ,857 on Switches
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_posts/2025-05-10-special-vdev-truenas.md

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tags: homelab zsf truenas
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Curious about how a special metadata VDEV can boost ZFS performance, especially with spinning disks? In this video, I walk through what it is, why it matters, and how to set it up in TrueNAS and some from the terminal. I’ll also share real-world benchmarks comparing pools with and without a special VDEV, so you can see the difference for yourself.
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## Join the conversation
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<blockquote class="twitter-tweet" data-dnt="true" data-theme="dark">I tested how much a special metadata VDEV can actually speed up ZFS. Turns out it makes directory browsing faster, snappier containers, and a smart use of NVMe. I built a test script, ran benchmarks, and walk through it all in <a href="https://twitter.com/TrueNAS?ref_src=twsrc%5Etfw">@TrueNAS</a> <a href="https://t.co/czyXEFkSd3">https://t.co/czyXEFkSd3</a> <a href="https://t.co/6hpIve8HR9">pic.twitter.com/6hpIve8HR9</a></p>&mdash; Techno Tim (@TechnoTimLive) <a href="https://twitter.com/TechnoTimLive/status/1921242653628199171?ref_src=twsrc%5Etfw">May 10, 2025</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
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## Links
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🛍️ Check out the new Merch Shop at <https://l.technotim.live/shop>
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layout: post
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title: "Buy Once, Cry Once: How I Wasted $2,857 on Switches"
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date: 2025-06-06 08:00:00 -0500
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categories: homelab
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tags: homelab unifi hardware network
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image:
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path: /assets/img/headers/switches-buy-once-cry-once.webp
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I bought and replaced 4 switches trying to save money…
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Then I finally spent $2,742 on the one I should’ve bought in the first place.
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{% include embed/youtube.html id='p8Fa7keyXPU' %}
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📺 [Watch Video](https://www.youtube.com/watch?v=p8Fa7keyXPU)
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## Info
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This isn’t sponsored — I paid for the switch myself along with all of the others included in the total.
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And it’s not really about networking.
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It’s about the cost of solving the same problem over and over again.
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Buy once, cry once.
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## 📦 Products in this video 📦
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(affiliate links)
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- Pro XG 48 PoE (the one I bought): <https://store.ui.com/us/en/category/switching-professional-max-xg/products/usw-pro-xg-48-poe?a_aid=TechnoTim>
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- Other Switches: <https://store.ui.com/us/en/category/all-switching?a_aid=TechnoTim>
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- Gateways: <https://store.ui.com/us/en/category/all-cloud-gateways?a_aid=TechnoTim>
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## Join the conversation
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<blockquote class="twitter-tweet" data-dnt="true" data-theme="dark">I ignored “Buy Once, Cry Once.”<br>Spent $2,857 on 4 switches over time…<br>Then $2,742 on the one I should’ve bought first.<a href="https://t.co/5n84XIcXeL">https://t.co/5n84XIcXeL</a> <a href="https://t.co/RQkV8zT9IP">pic.twitter.com/RQkV8zT9IP</a></p>&mdash; Techno Tim (@TechnoTimLive) <a href="https://twitter.com/TechnoTimLive/status/1931016758409732605?ref_src=twsrc%5Etfw">June 6, 2025</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
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## Links
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🛍️ Check out the new Merch Shop at <https://l.technotim.live/shop>
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⚙️ See all the hardware I recommend at <https://l.technotim.live/gear>
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🚀 Don't forget to check out the [🚀Launchpad repo](https://l.technotim.live/quick-start) with all of the quick start source files
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🤝 Support me and [help keep this site ad-free!](/sponsor)
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