Yeah that was my first thought. Noise is really what killed my home lab in the 00s. It was over 3kW when all turned on and was audible from any room in the house.
Lasted about 18 months before my wife vetoed it.
From memory -
Sun ultra 60 x 2
Sun ultra 80 with the big foam sound deadening kit option
Sun ultra 5 x many (6?)
Sun ultra 10 x 2
Sun 6 bay scsi external disk caddy
Cisco 24 port 10/100 managed switch but i forget the model, something XL (ios 11 or something truly ancient like that)
2 cisco routers with PPPoA adsl adapters
3com unmanaged kit with POE
Terminal server
IBM AIX b50 telco 1u server
Several linux x86 hosts in a “beowulf” cluster - single machine image spread over commodity nodes. Seriously cool, even today i’m in awe of the concept (but not the practicalities)
An openbsd host on an old x86 desktop
A freebsd node on a beefy (for the time) AMD opteron host
And probably a bunch of other toys i’ve forgotten by now.
That's a serious amount of kit, and there's no way 20+ machines isn't going to emit a constant roar. At some point, if you're going to have that kind of setup, it needs to be in a dedicated workshop that's either free-standing, or somehow otherwise sound-isolated from the main house. I know I'd never get away with running that much equipment all at once!
Lasted about 18 months before my wife vetoed it.
From memory -
Several linux x86 hosts in a “beowulf” cluster - single machine image spread over commodity nodes. Seriously cool, even today i’m in awe of the concept (but not the practicalities)An openbsd host on an old x86 desktop
A freebsd node on a beefy (for the time) AMD opteron host
And probably a bunch of other toys i’ve forgotten by now.