ZION – 4U Unraid Storage Server

I am excited to reveal my latest 2020 custom server build – ZION. See my previous planning post for Zion here.

Built from the ground up to be a custom 15+ drive bay rack-mountable storage server and virtual machine host. Using AMD Ryzen Zen+ architecture and X370 chipset. Zion was designed to be powerful enough to run KVM virtual machines and Docker containers.

Zion runs Unraid Pro with SSD caching and dual parity. It has capacity for 25 drives total: 24 HDDs (16 HBA + 8 On-board Mobo) and 1 x M.2 SSD/NVMe slot.

Named after Zion from the The Matrix movies.

Zion is the last human city on the planet Earth after a cataclysmic nuclear war between mankind and sentient machines, which resulted in artificial lifeforms dominating the world.


New Additions (since the planning post)

I added a Icy Dock MB326SP-B which is a 6-bay 2.5″ SSD drive cage. I creatively mounted this inside the case so that the it would be more organized. This is strictly for the SSD caching drives. It’s a snug fit, almost like it was meant to be.

Hardware Specs

Hardware Costs: $1,936.22 CDN (not including; taxes, hard drives, shipping, etc)

Build Notes

The Rosewill RSV-L4500 server chassis has really surprised me in terms of build quality. The internal crossbar functions as a handle and is handy for cable management, but also it’s removable and adjustable if you prefer to not use it. The triple 120mm fan tray is also removable for servicing or if you chose not to use it either.

I gutted the Rosewill chassis’ included features; drive cages and fans. Their version of the drive bays was not ideal. It requires the use of flimsy plastic clips. The fans they included (3x120mm and 2x80mm) were also garbage. I tossed them right away – despite the nice gesture to include them on Rosewill’s part. I also removed the “front door” from the server chassis. Let’s be honest, it was blocking the blinky lights. Not to mention it was just getting in the way and made the server look less ascetically pleasing.

Using the KingWin 5-bay drive cages (essentially the same as the iStarUSA re-branded versions) are completely tool-less, serviceable from the front without having to open the chassis, full hot-swap, and have activity lights. I must say it makes the server chassis look pretty cool when it’s fully populated and lit up.

Once the HBA’s arrived I was able to seamlessly swap the drives and Unraid OS USB stick over to the new hardware without any issues or data loss. I am very happy I went with the SAS3 12Gbps HBA’s because I was hitting up to 1.3GB/sec (10.40 Gbps) read/writes during testing and parity-rebuilds! If I had used SAS2 I would have been getting less than 6Gbps – ouch! Make sure you do not make that mistake.

It’s also of note that this server is 10-Gigabit networking ready. While I do not currently have a 10Gig network card in the server, it can be added without issue when I decide to pull the trigger on 10Gig.

Overall I think I exceeded all of my build goals but I did go over my budget. That said this server will last me many years and be completely scalable into the future as needed. I can easily add more RAM, drives, etc to scale-up the server when needed. Having a larger drive pool with Unraid allowed me to consolidate my older storage servers into this one.

Picture Gallery

Still to-do…

Zion is now up and running and has essentially replaced my old NAS2 and NAS4 6-bay storage servers. However Zion will not fit on my current rack. So I will have to do a full lab swap over to a new 5-tier wire shelf, from the current 4-tier wire shelf. That is a monstrous amount of work and will require a shutdown of most of the equipment. So that will have to be done on a free weekend when my spouse is not home.

Closing Notes

Thank you for reading. I hope that you found this post helpful. Feel free to drop a comment below if you have any questions or suggestions.

Karl has been involved in the virtualization, server, web development and web hosting industry for over 15 years. In his current role at a managed service provider, he is focused on cloud-based solutions for enterprise clients. His diverse background of sales, management, and architectural/technical expertise bring a unique perspective to the virtualization practice.


  1. Antonio

    Whats your thoughts on your choice of the AMD Ryzen 5 2600X Processor vs ryzen 7 3700x? I am trying to device between these 2 for my unraid, plex build

    • Antonio, I would go with the Ryzen 7 if I had the choice. I went with the Ryzen 5 for this build only to save cost. If you are planning on doing multiple transcodes on a Plex server for example you will want a beefy CPU.

  2. RJett

    Nice upgrade, so when you switched to unraid, did you consider freenas? pros/cons?
    Also seen you have a custom firewall, what distro did you choose to go with didn’t see mention of that. I am redoing my lab as well, work in progress and would like to have good firewall that I can support ids/ips, but my asa won’t do it with out compromising my gigafiber speed. Ubiquiti dream machine pro says it can, currently my asa is not inline and using sophos home UTM which I could beef up that pc to do more. picked up vmug and going to do a vmlab to get more hands on. Your site is full of good info. Looking forward to seeing it all come together.

    • RJett, I’ve been a long time user of FreeNAS in the past. I could have easily gone down that route instead of Unraid too. In the end it just came down to personal preference.

      The 1U custom firewall I built is currently running Untangle HomePro. It’s fairly easy to use and suites all my needs. Generally most home users use pfSense, UniFi SG, or Sophos.

      The UniFi Dream Machine Pro looks interesting. It does state “IDS/IPS Throughput: 3.5 Gbps” so shouldn’t need to worry about your 1Gbps uplink.

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