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Breakout-ATX-RAID/README.md
2026-05-16 18:08:21 +01:00

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Custom RAID Storage Solution

Motivation

The server that runs tobiastime.xyz and various services I utilize daily is actually a SFF PC from 2012. Due to it's tiny size I can't fit harddrives within the machine's case, they must exist outside of it.

Previously I utilized an external USB drive bay for mass storage, however I wanted to implement redundancy and fault tolerance for my disks. Due to my device's relatively weak CPU software level RAID via mdadm was out of the question, I needed a dedicated hardware controller.

From what I researched there does not exist a consumer-grade external USB drive bay that supports RAID and can house as many drives as I wish to connect (8). Consequently I began to blueprint my custom RAID storage solution. I had two demands from the solution, #1 that it functions, and #2 that it is affordable.

Hardware

  • 8x 4TB WD HDDs
  • 1x LSI MegaRAID SAS 2208 PCIe card
  • 1x Semi-Modular ATX PSU
  • 1x ATX Breakout Board
  • 2x Mini-SAS 26 pin to 4X SATA 7 pin breakout cable
  • 2x ATX PSU 6 pin to 4X SATA 15 pin power cable
  • 1x 40mm 5v USB fan
  • 1x 3.5 inch HDD enclosure holding 8 drives