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What do you use for rack noise mitigation that actually works?

Dedicated Servers by danfra 26 replies 2.4K views
lucgone

Member

Le Baguette

#11
liam_funky said:
49 dB

This is credible. I have 38dB in my flat with nothing running. Your garage before 71dB, after 49dB, this is reasonable.

But I am in Lyon, apartment. No garage, no basement. I would need to rent local colocation or put servers at my parents in the countryside. For me the Leaseweb option at €45 is interesting — https://www.leaseweb.com — but I need less than 1U. I have only one server.

The real question for danfra: what is your lease situation? If you own the house, basement is best. If you rent, the enclosure or relocation is impossible without landlord.

Vive la résistance... électrique
danfra

Member OP

#12
lucgone said:
What is your lease situation?

Renting. Landlord is reasonable but basement has moisture issues, old house. Dehumidifier running already. Adding heat load worries me.

Shed is not an option, no garden. Garage is it.

kate3 said:
Replace with 80mm Noctua where chassis allows

Supermicro 826 and 846 chassis. 80mm fans exist for these? I thought they were locked to San Ace 40mm.

mitigated 800Gbps before breakfast
kate3

Member

#13
danfra said:
Supermicro 826 and 846

826 takes 80mm in the middle fan wall if you remove the shroud. 846 is harder, the backplane airflow wants the 40mm pressure.

You can also replace the PSU fans alone, those are 40mm but standard size. Noctua NF-A4x20. Cuts 4-5 dB, not 10.

The real problem is your 10G switches. Those are always 40mm screamers. Mellanox, Ubiquiti, same story. No replacement possible.

virsh list --all | wc -l: 47
tallinnying

Member

Night Shift

#14
kate3 said:
The real problem is your 10G switches

This. I have EdgeSwitch 16 XG. Even at idle the fans hunt. Not constant hum, so my anti-phase disaster could never work on it anyway.

I should sell it and get something passively cooled but then I am back to 1G. Life is tradeoffs.

builds at 3AM, sleeps at noon
elecosl

Member

9 #15

I started with Pi, now I have rack. The noise made me move everything to a friend's office in Oslo. He has proper cooling, I pay half his power bill.

Fiber was already there. No construction.

My point: you know someone with space. Ask.

josemcelroy

Member

#16
danfra said:
Supermicro 826 and 846

Glasgow here. Twelve racks in industrial unit now, but I started in a flat. The 846 backplane wants static pressure you won't get from 80mm. Don't bother.

For switches, look at FS.com S5860-20SQ. 10G, fanless if you run under 35C ambient. I have two in the office, silent. Not Ubiquiti price but not Ubiquiti noise either.

danfra

Member OP

#17
josemcelroy said:
FS.com S5860-20SQ

Interesting. I have 4 SFP+ ports in use now, 8 planned. That model has 20x 10G. Price?

And fanless means no redundancy. Single PSU. For home lab maybe fine.

mitigated 800Gbps before breakfast
josemcelroy

Member

#18

Around £800 last I checked. Single PSU yes, but also no moving parts to fail. MTBF on solid state is higher than fans.

Your Supermicro PSUs have N+1. The switch is your weak point anyway.

pavel_train

Member

#19

Unix philosophy: do one thing well. Your rack does too many things in too small space.

Separate storage from compute. One quiet NAS in living room, compute in garage with less heat. Less heat, less fan speed, less noise.

I have TrueNAS on Fractal Design Define case, inaudible. Proxmox cluster in closet with door closed. 42U is showing off, not solving.

rustyrack_grag

Member

#20
pavel_train said:
42U is showing off

Disagree. 42U is future expansion. But fill it gradually and you create thermal problems. Better to start with 25U if you have 6 servers.

I am in Tallinn also. The humidity here is lower than Frankfurt, but winters are cold. Garage is fine if you insulate the rack, not the room.

pavel_train said:
Leaseweb offers 1U from €45

I said this already. But for danfra's 6 servers, colocation is €270/month. His $800 budget pays for three months. Not a solution.

if it ain't broke, rust it

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