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A History of My Homelab

vhaudiquet.fr

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Re: A History of My Homelab

#11

Post by lostlogin »

tehlike wrote: post #2

Pretty nice. These days data center capacity is measured with wattage. What's yours? My homelab is about 650Ws as is, and should cost around 300$/mo in electricity (california premium).

I was trying to sort a decent UPS, then got distracted by solar and bought a house battery.

Once that addition was complete I wanted to get power usage down.

macOS is a pretty terrible OS for a homelab, but the mini is amazing. It’s averaging about 5.5w and has an awful lot of power available.

UTM makes it more bearable and running services in Ubuntu works fine.

Re: A History of My Homelab

#12

Post by gh02t »

tehlike wrote: post #2

Pretty nice. These days data center capacity is measured with wattage. What's yours? My homelab is about 650Ws as is, and should cost around 300$/mo in electricity (california premium).

I'm seeing an average cost in CA of 30c/kWhr, which should be more like $150. Is your electricity bill really running 60c per? Ouch.

Re: A History of My Homelab

#14

Post by vhaudiquet »

gamedna wrote: post #13

Can you share more details about how you connect the 3d rack enclosure to the 740?

Certainly! The original [link](https://makerworld.com/en/models/488435-12-trays-hdd-enclosu...) already has information. On the back I mounted SATA connectors (SATA-to-SATA, with power). I have a 1U PSU in the enclosure, which has SATA-power cables connected to the back connectors. Then, I have two SAS to 8 SATA cable that connects to the HBA card in my server on the Mini-SAS end and to the SATA connectors on the back on the enclosure. I hope that makes sense :)

Re: A History of My Homelab

#15

Post by intothemild »

vhaudiquet wrote: post #10
intothemild wrote: post #9

Earlier quoted context omitted.

Just to add to this, I would personally use ABS/ASA, or a fibre variant of those, like Carbon or Glass (if you don't have an enclosed printer). PA (like PA612) is also a good option. Basically anything that can handle higher temps. PETG starts to deform at ~75-85'c. The upper end of that should be fine, but the lower end.. certain things can get close to that temp. So if you've got good airflow, and nothing is passiv…

Yes, I would have loved to use a 'better' material, but my printer is not enclosed and I'm not sure it can print CF filaments (I think I would need to change the hot end at least). But soon I will hopefully get my hands on a new BambuLab printer which should let me play with those materials!

Actually you can. You'd need a hardened steel nozzle and that's about it. CF/GF filaments are designed to be easier to print, even on an open printer. It's almost the main reason they're popular.

Re: A History of My Homelab

#16

Post by tehlike »

gh02t wrote: post #12
tehlike wrote: post #2

Pretty nice. These days data center capacity is measured with wattage. What's yours? My homelab is about 650Ws as is, and should cost around 300$/mo in electricity (california premium).

I'm seeing an average cost in CA of 30c/kWhr, which should be more like $150. Is your electricity bill really running 60c per? Ouch.

https://www.pge.com/assets/pge/docs/account/rate-plans/resid...

I don't have the old rates, i remember having 60cents or so as the baseline but i don't fully recall.

Re: A History of My Homelab

#17

Post by tehlike »

lostlogin wrote: post #11
tehlike wrote: post #2

Pretty nice. These days data center capacity is measured with wattage. What's yours? My homelab is about 650Ws as is, and should cost around 300$/mo in electricity (california premium).

I was trying to sort a decent UPS, then got distracted by solar and bought a house battery. Once that addition was complete I wanted to get power usage down. macOS is a pretty terrible OS for a homelab, but the mini is amazing. It’s averaging about 5.5w and has an awful lot of power available. UTM makes it more bearable and running services in Ubuntu works fine.

Yeah - I don't have macs, but i use older Lenovo tinys. They run at around 10watts, and plenty of compute for what i need.

I also have a monster epyc 7200p, a 1G poe switch, a 56G mellanox optics switch, another server with HBA connected to a DS4246.

Everything I absolutely positively need.

Re: A History of My Homelab

#18

Post by gh02t »

tehlike wrote: post #16
gh02t wrote: post #12

Earlier quoted context omitted.

I'm seeing an average cost in CA of 30c/kWhr, which should be more like $150. Is your electricity bill really running 60c per? Ouch.

https://www.pge.com/assets/pge/docs/account/rate-plans/resid... I don't have the old rates, i remember having 60cents or so as the baseline but i don't fully recall.

Damn, that's still pretty harsh.
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