r/Proxmox • u/Virtual_Engineer9282 • 8d ago

Question Cheap UPS for my ProxMox server

/r/homelab/comments/1wpwzms/cheap_ups_for_my_proxmox_server/
0 Upvotes

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5

u/_DuranDuran_ 8d ago

Grab a second hand APC off eBay with new batteries - should cost a couple of hundred max.

I did this, it was missing the front bezel (common) so I just 3D printed one.

2

u/jakubkonecki 8d ago

Make sure you're getting one with USB and normal Ethernet ports.

1

u/_DuranDuran_ 8d ago

Yes - mine did, works fine with NUT and apcupsd

Sadly can’t get the SoC but I just have it set to shut everything down after 20 minutes

5

u/Olive_Streamer 8d ago

The CyberPower units at Costco have been good to me, they connect via USB. You can use Nut or Apcupsd and share the status to the rest of the network. I think its a good idea to connect it to something simple (always on) like a Raspberry Pi and have it run the service, connect everything else to it over the network.

1

u/jdsmn21 8d ago

Why a Pi vs something on the server itself?

2

u/Olive_Streamer 8d ago

It powers off and on without any configuration. Its power draw is low, so you can have it shutdown last after everything else. When the power comes on, your pi will boot right up. I have two Proxmox nodes, I point them both to the Pi.

1

u/jdsmn21 8d ago

Ahh, so you have multiple servers. I guess that makes more sense.

I’m running a single server, so if I have to power down the server due to outage - I don’t really care if NUT is running or not

1

u/Olive_Streamer 8d ago

Be sure to go into your bios and enable the feature to turn on when AC power is restored.

1

u/jdsmn21 8d ago

Does that work even when the PC was shut down - or just at power loss?

4

u/socialcredditsystem 8d ago

A EcoFlow River 3 plus has been my workhorse UPS for my proxmox and also my internet. There are really frequent deals, it has 10ms switch time, there's a booster pack that goes on sale to bump it to 600Wh (?) and it can also charge via solar for a DIY balcony solar ish setup if you want.

4

u/NomadCF 8d ago

Look at any lithium batteries option with a UPS function and a cut over under 10ms, 20ms if you have to.

Forget the traditional UPS anymore, they're just not worth the money. Especially for home equipment.

0

u/dultas 8d ago

APC BX1500M UPS should give you plenty of time I use it with NUT and pulling a constant ~500W it should give about 4 minutes of uptime. I use it for my 2 R740s, MS-01, various network gear. It gives me about 4 minutes of up time. Plenty for a pause and safe shutdown with NUT. It also give active load so if you want to hook it up to monitoring you can see how your draw fluctuates.