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I wonder if my system is good or bad. My server needs 0.1kWh.

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[–] qaz@lemmy.world 7 points 23 hours ago (3 children)

17W for an N100 system with 4 HDD's

[–] acockworkorange@mander.xyz 3 points 20 hours ago (1 children)

Which HDDs? That’s really good.

[–] qaz@lemmy.world 3 points 19 hours ago* (last edited 19 hours ago)

Seagate Ironwolf "ST4000VN006"

I do have some issues with read speeds but that's probably networking related or due to using RAID5.

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[–] MentalEdge@ani.social 59 points 1 day ago* (last edited 1 day ago) (3 children)

You might have your units confused.

0.1kWh over how much time? Per day? Per hour? Per week?

Watthours refer to total power used to do something, from a starting point to an ending point. It makes no sense to say that a device needs a certain amount of Wh, unless you're talking about something like charging a battery to full.

Power being used by a device, (like a computer) is just watts.

Think of the difference between speed and distance. Watts is how fast power is being used, watt-hours is how much has been used, or will be used.

If you have a 500 watt PC, for example, it uses 500Wh, per hour. Or 12kWh in a day.

[–] fool@programming.dev 20 points 1 day ago* (last edited 18 hours ago) (2 children)

I forgive 'em cuz watt hours are a disgusting unit in general

idea what unit
speed change in position over time meters per second m/s
acceleration change in speed over time meters per second, per second m/s/s=m/s²
force acceleration applied to each of unit of mass kg * m/s²
work acceleration applied along a distance, which transfers energy kg * m/s² * m = kg * m²/s²
power work over time kg * m² / s³
energy expenditure power level during units of time (kg * m² / s³) * s = kg * m²/s²

Work over time, × time, is just work! kWh are just joules (J) with extra steps! Screw kWh, I will die on this hill!!! Raaah

[–] acockworkorange@mander.xyz 2 points 20 hours ago* (last edited 20 hours ago) (1 children)

Power over time could be interpreted as power/time. Power x time isn’t power, it’s energy (=== work). But otherwise I’m with you. Joules or gtfo.

[–] fool@programming.dev 2 points 18 hours ago* (last edited 18 hours ago)

Whoops, typo! Fixed c:

[–] catloaf@lemm.ee 7 points 1 day ago

Could be worse, could be BTU. And some people still use tons (of heating/cooling).

[–] cholesterol@lemmy.world 2 points 22 hours ago

If you have a 500 watt PC, for example, it uses 500Wh, per hour. Or 12kWh in a day.

A maximum of 500 watts. Fortunately your PC doesn't actually max out your PSU or your system would crash.

[–] muntedcrocodile@lemm.ee 4 points 1 day ago

kWh is the stupidest unit ever. kWh = 1000J/s * 6060s = 3.610^6J so 0.1kWh = 360kJ

[–] Ulrich@feddit.org 25 points 1 day ago* (last edited 1 day ago) (1 children)

0.1kWh per hour? Day? Month?

What's in your system?

[–] GravitySpoiled@lemmy.ml 1 points 23 hours ago (6 children)

Computer with gpu and 50TB drives. I will measure the computer on its own in the enxt couple of days to see where the power consumption comes from

[–] Ulrich@feddit.org 1 points 16 hours ago* (last edited 16 hours ago)

Which GPU? How many drives?

Put a kill-o-watt meter on it and see what it says for consumption.

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[–] daniskarma@lemmy.dbzer0.com 5 points 22 hours ago* (last edited 22 hours ago)

Around 18-20 Watts on idle. It can go up to about 40 W at 100% load.

I have a Intel N100, I'm really happy about performance per watt, to be honest.

50W-ish idle? Ryzen 1700, 2 HDDs, and a GTX 750ti. My next upgrade will hopefully cut this in half.

[–] elmicha@feddit.org 29 points 1 day ago (12 children)

Do you mean 0.1kWh per hour, so 0.1kW or 100W?

My N100 server needs about 11W.

[–] chunkystyles@sopuli.xyz 4 points 1 day ago

The N100 is such a little powerhouse and I'm sad they haven't managed to produce anything better. All of the "upgrades" are either just not enough of an upgrade for the money, it just more power hungry.

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[–] bier@lemmy.blahaj.zone 4 points 1 day ago

My whole setup including 2 PIs and one fully speced out AM4 system with 100TB of drives a Intel Arc and 4x 32gb ecc ram uses between 280W - 420W I live in Germany and pay 25ct per KWh and my whole apartment uses 600w at any given time and approximately 15kwh per day 😭

[–] walden@sub.wetshaving.social 9 points 1 day ago* (last edited 1 day ago) (2 children)

9 spinning disks and a couple SSD's - Right around 190 watts, but that also includes my router and 3 PoE WiFi AP's. PoE consumption is reported as 20 watts, and the router should use about 10 watts, so I think the server is about 160 watts.

Electricity here is pretty expensive, about $.33 per kWh, so by my math I'm spending $38/month on this stuff. If I didn't have lots of digital media it'd be worth it to get a VPS probably. $38/month is still cheaper than Netflix, HBO, and all the other junk I'd have to subscribe to.

[–] GravitySpoiled@lemmy.ml 4 points 23 hours ago

That's true. And the children of my family see no ads which is priceless. Yet I am looking into ways to cut costs in half by using an additional lower powered mini pc which is always on and the main computer only running in the evening - maybe.

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[–] GreenKnight23@lemmy.world 5 points 1 day ago* (last edited 1 day ago) (2 children)

last I checked with a kill-a-watt I was drawing an average of 2.5kWh after a week of monitoring my whole rack. that was about three years ago and the following was running in my rack.

  • r610 dual 1kw PSU
  • homebuilt server Gigabyte 750w PSU
  • homebuilt Asus gaming rig 650w PSU
  • homebuilt Asus retro(xp) gaming/testing rig 350w PSU
  • HP laptop as dev env/warmsite ~ 200w PSU
  • Amcrest NVR 80w (I guess?)
  • HP T610 65w PSU
  • Terramaster F5-422 90w PSU
  • TP-Link TL-SG2424P 180w PSU
  • Brocade ICX6610-48P-E dual dual 1kw PSU
  • Misc routers, rpis, poe aps, modems(cable & 5G) ~ 700w combined (cameras not included, brocade powers them directly)

I also have two battery systems split between high priority and low priority infrastructure.

[–] Atemu@lemmy.ml 2 points 21 hours ago (1 children)

I was drawing an average of 2.5kWh after a week of monitoring my whole rack

That doesn't seem right; that's only ~18W. Each one of those systems alone will exceed that at idle running 24/7. I'd expect 1-2 orders of magnitude more.

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[–] pearsaltchocolatebar@discuss.online 5 points 1 day ago (1 children)

Ugh, I need to get off my ass and install a rack and some fiber drops to finalize my network buildout.

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[–] mtoboggan@feddit.org 4 points 1 day ago* (last edited 1 day ago)

Idle: 30 Watts

Starting all docker containers after reboot: 140 Watts

It needs around 28 kWh per month.

[–] calamityjanitor@lemmy.world 5 points 1 day ago

My 10 year old ITX NAS build with 4 HDDs used 40W at idle. Just upgraded to an Aoostart WTR Pro with the same 4 HDDs, uses 28W at idle. My power bill currently averages around US$0.13/kWh.

[–] ShellMonkey@lemmy.socdojo.com 6 points 1 day ago (1 children)

About 700 watts, it makes for a decent space heater in the winter.

[–] corroded@lemmy.world 3 points 1 day ago

I'm right around the same level, and it actually keeps my server room / workshop at comfortable temperature during the winter. I also have my gaming PC mounted in my server rack; when that's running, there are times where my AC will still kick in even when it's 40 degrees outside.

[–] mesamunefire@lemmy.world 6 points 1 day ago* (last edited 1 day ago) (3 children)

I think at max 200w? It runs a collection of fedi/self service stuff.

I also run a pi with a couple of apps on a pi 3 that sips power.

It's a legitimate issue because it's 50+ cents per killowat hour where I live so power is very expensive...

[–] Fubarberry@sopuli.xyz 6 points 1 day ago (3 children)

That seems really high, I think power where I live is about 12-14 cents per kilowatt hour. What makes it so expenses where you live?

[–] mesamunefire@lemmy.world 7 points 1 day ago* (last edited 1 day ago) (1 children)

Mostly just that they can. It's more expensive per tier actually.

https://www.pge.com/assets/pge/docs/account/rate-plans/residential-electric-rate-plan-pricing.pdf

Take a look, this is the old pricing. They just voted to up it again.

There's legislation that is moving along to charge people with solar because...idk.

[–] Imacat@lemmy.dbzer0.com 5 points 1 day ago (1 children)

They’re charging for solar because PGE is a greedy fuck.

[–] mesamunefire@lemmy.world 3 points 1 day ago (1 children)

Yes. There was talk locally for local government to take control of the power but it's just talk..

It gets over 110 where I live in the summer...so air conditioning can make it very expensive.

[–] Fubarberry@sopuli.xyz 3 points 1 day ago (2 children)

Wait this is in the US? How, this is even more expensive than Hawaii, and they have obvious reasons for power to be more expensive there

[–] Imacat@lemmy.dbzer0.com 5 points 1 day ago* (last edited 1 day ago) (1 children)

PGE serves Northern California. They keep raising rates like 10-15% each year to cover their losses after all the wildfires a couple years ago and because of the greed.

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[–] mesamunefire@lemmy.world 4 points 1 day ago

Yep. And they are talking about a couple more price hikes next year. Significant ones.

[–] bobs_monkey@lemm.ee 3 points 1 day ago

Damn, I wish ours was that cheap. We're roughly $.30/kwh, mostly because our local poco is a reseller of SCE and we're in a rural area.

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[–] corroded@lemmy.world 3 points 1 day ago (1 children)

Holy shit. I'm paying less than 10c per kwh even in the "high usage" tier.

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[–] Blisterexe@lemmy.zip 2 points 1 day ago (1 children)

that's insane, i pay like 5¢ a KWh

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[–] cmnybo@discuss.tchncs.de 4 points 1 day ago

My server with 8 hard drives uses about 60 watts and goes up to around 80 under heavy load. The firewall, switch, access points and modem use another 50-60 watts.

I really need upgrade my server and firewall to something about 10 years newer, it would reduce my power consumption quite a bit and I would have a lot more runtime on UPS.

[–] Lemmchen@feddit.org 4 points 1 day ago

I'm idling at 120W with eight drives, but I'm currently looking into how to lower it.

[–] corroded@lemmy.world 3 points 1 day ago (1 children)

For two servers (one with a lot of spinning rust), two switches, and a few other miscellaneous network appliances. My server rack averages around 600-650W. During periods of high demand (nightly backups, for instance), that can peak at around 750W.

[–] GravitySpoiled@lemmy.ml 1 points 23 hours ago

Wow, that sounds like I have rookie numbers

[–] Ebby@lemmy.ssba.com 3 points 1 day ago

There are some really efficient systems out there, but power requirements depend a lot on what is run.

A simple website is very different that a photo gallery running content ID for example.

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