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> Power cuts - Not had one ever.

I had both blackouts and brownouts. They're typically very short lived so why not add a little UPS to the mix?

Regarding the Pis: I've got both an army of Pi and now an army of NUCs. I don't know what'd work best for you.

Also is Gbit/s sufficient?

> Payback < 3 months

To me it's a no brainer but you could also aim for a payback in less than, say, six months and have something really smoking that $1000/month cloud offering.

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NUC's look interesting, thanks for this!

Yeh, bandwidth should be more than sufficient.

Agreed, looking at bleeding edge SDD's, seems a simple way to have a blazing fast DB. Even a 12 month payback works. We're feature complete so I could keep the setup without upgrades for some time

Trusting bleeding edge consumer SSDs would be a bad idea in my opinion. Go read some of the threads over on realworldtech.com of folks reporting failure to detect bit errors in consumer SSDs. I'd have similar concerns with using Raspberry Pis that do not have ECC memory. These things don't matter until they do. Once you've wasted a day or 2 looking for a kernel bug that turned out to be a hardware issue, the value of error detection in your hardware becomes well worth it... Unless you don't value your own time.

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