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Is RAID1 over USB Reliable? (infosec.pub)

submitted 5 months ago by [email protected] to c/[email protected]

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I have an 11th gen Framework mainboard which I would like to repurpose as a server. Unfortunately, (unless I do some super janky stuff) I can only connect 1 drive to it over M.2 and any additional ones must be over USB.

I am thinking of just using some portable hard drives and plugging them in over USB. I plan to RAID1 them and use them as boot drives and data storage, and use the M.2 slot for something unrelated.

In your experiences, is USB reliable enough nowadays to run a RAID array for a server like this? If it is, does it depend on the specific drive used?

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[–] [email protected] 9 points 5 months ago

Today's CPUs usually expose some USB connections directly. Ryzen 7000 desktop CPUs expose 4 USB 3.2 Gen 2 directly on their on-package I/O die for example. So if you connect your USB drives directly to the ports your mainboard connects directly to the CPU, the chipset ("southbridge") and any third-party USB controllers are out of the equation.

This is just information, I'm not advising to use USB for fixed storage.