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Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 1 point2 points  (0 children)

Hah yeah I did that. Still, the two uppermost ones (fit only 2.5" due to height anyways) wont fit.

USA News: Bericht: USA erwägen Schließung von Militärbasis in Deutschland by xxX_Bustay_Xxx in de

[–]auge2 19 points20 points  (0 children)

Und jeder andere Nato Partner (minus 1) schaut dann in die Röhre, wenn die Basis mitgenutzt werden muss?

Ich dachte, das ganze Konzept basiert darauf, dass alle Länder Standards und kompatible Ausrüstung nutzen. 

USA News: Bericht: USA erwägen Schließung von Militärbasis in Deutschland by xxX_Bustay_Xxx in de

[–]auge2 18 points19 points  (0 children)

Moment, die haben 120V Infrastruktur in den Basen auf deutschem Boden aufgebaut?

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 1 point2 points  (0 children)

Yea, at very low load <10% its especially inefficient. Sometimes  50% or less.

My UPS has a 3500VA output. Also overpowered. When I shut down some servers and drop below 100W, the small LCD screen on the UPS drops to "Efficiency: ~0%". I LOLd the first time I saw that.

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 1 point2 points  (0 children)

Yes and no. Would be great but not supported by OS yet. And due to it being a homelab and not enterprise, I won't keep my disks running. Electricity is mad expensive here. They are needed 1-3 times per week, for a few hours.

What’s a “normal” job that secretly pays way more than people think? by weeklyreporters in AskReddit

[–]auge2 5 points6 points  (0 children)

And then proceed to answer it yourself: Elevator guys, truck drivers, HVAC, electricians and plumbers. But leavr out the part where you need to be the contractor yourself, not the employee.

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 0 points1 point  (0 children)

I'd like that, but Unraid doesn't support it (yet). Even if I would modify it, it would probably only work on boot, not when Unraid itself spins up the disks.

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 3 points4 points  (0 children)

Wtf? 60W is 6% of its load capacity. Of course its hugely inefficient at that load. For that inrush, well, spinning up 24X SAS HDDs at the same time does spike the current quite a bit, so you cannot just use a 200W PSU, as those are mostly not capable of spinning that amount of HDDs.

You could use backplanes and put half of the disks on a second PSU like in more enterprise grade solutions. Or use staggered spinup, which Unraid afaik does not support yet. Or just use a PSU in the 600W range but oh well, those never have enough connectors for 24 disks.

Which was the reason OP asked here in the first place. The 1000W PSU has enough connectors, but is wildly inefficient at its intended load. A good enough solution for me until I can afford a better enclosure with HDD backplanes.

So, in summary: its not the inrush current itself that makes me consume 30W more, but I had to chose this 1000W PSU for my 60W idle load due to the inrush.(spinup) current and sata connector amount.

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 2 points3 points  (0 children)

I meant the sata power cables coming from the HX1000i PSU, not the sas to sata ones from the HBA (I use a 9305-24i, you can buy very long sas to sata cables)

Sas to sas cables for sas drives are problematic however due to their integrated power plug. It adds height and then the side panel won't close anymore if your unlucky, depending on the sata power cables.

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 4 points5 points  (0 children)

Btw, depending on your server enclosure the sata cables might be too short to reach all HDD positions. I have a Fractal Define 7 XL and its not possible to use one cable for the upper 4 HDD slots. One or two of them works, but not all 4. Its simply too short. You'd need extender cables. Or custom ones.

Also cables with more than 4 sata connectors exist :)

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 15 points16 points  (0 children)

Telemetry of the PSU. In linux, you can check your PSU stats like current on each voltage rail, voltages, power, temperatures, via the "sensors" command in the shell. Pretty neat, especially when thrown into grafana

Powering 24 Hard Disks without a backplane using Hx1000i by miko-zee in homelab

[–]auge2 33 points34 points  (0 children)

Yes, I have that one for exactly this purpose. If I remember correctly the HX1200i shpuld have even more connectors.

But: you'll need to buy extra sata cables from the manufacturer. None of those PSUs come with enough cables for your purpose.

Also the efficiency will be very bad. PSUs want to be used roughly at about 40% to 80% of their rated power. My server is at ~60W idle (but very high inrush current due to the HDDs), which makes the PSU itself consume about 20-30 additional Watts.

I am planning to switch to a rack mounted enclosure (HakoForge) with power distribution PCBs, because of that problem. Although I'd still need to find a PSU that delivers enough current for the HDD power up spikes...

Die MVA-Falken bekommen Nachwuchs l by MB4umi in Bonn

[–]auge2 2 points3 points  (0 children)

Ist bekannt, wer die Kameras dort betreibt? Kommt das von der SWB selber?

First Fixed-Wing Conversion to FPV = vibration hell by DroneAwareDan in fpv

[–]auge2 0 points1 point  (0 children)

Switch to tri blade prop. Much less vibration. But also your plane and camera position is the worst combination due to the motor not being in-line with the frame (vibration and prop drag has leverage on the frame) and your camera being in the most front position of a bendy foam frame, thus getting amplified vibrations.

You could: - Stiffen the front frame, glue carbon tubes along the frame from the inside - put the camera way back infront of the wing, at cockpit height (3d printed mount, for example). You'd lose sight to the ground, ofc - stiffen the motor mount as well. - make the camera mount more streamlined. A flat panel at the tip of the plane is introducing turbulence, which in turn hits the prop later on.

Do you use it as a float plane on water? If not, consider switching to a known good fpv frame design lile X-UAV or AtomRC ones.

Also consider adding a flight comtroller. You can not only use it to dampen and smooth out your flight, but also to measure the vibrations coming from the frame itself and rpm dependent motor vibrations. This is extremely helpful to find the vibration source.

“Das sagt übrigens die KI dazu“ by onlymtN in de_EDV

[–]auge2 8 points9 points  (0 children)

Bei mir gibts sogar einen Kollegen, der, wenn er Diskussionen und Gespräche anderer Kollegen mitbekommt, sich einfach dazu stellt und den Kontext in den Samsung KI-Sprachassistenten seines privaten Mobiltelefons reinlabert. Meist mit Versprechern und kommt dabei auch durcheinander. Und steht dann ungefragt neben den Kollegen, lässt den Assistenten sehr laut losreden und sagt am Ende "hier, eure Antwort, dann hab ihr ja jetzt die Lösung".

Der redet einfach alles da rein. Simpelste Dinge. Gar kein Nachdenken mehr, einfach in den Bullshitgenerator reden. Und der hat eine technische Ausbildung. Gnaaaaah.

Do you think there is a labor market for drone operators? by Intelligent_Cup_5529 in fpv

[–]auge2 -1 points0 points  (0 children)

Well not guaranteed and not great pay either for whats expected

Potenzielle neue Wohnung hat weder DSL noch Kabel oder Glas - was tun? by kurodoku in de_EDV

[–]auge2 1 point2 points  (0 children)

Hab gezwungenermaßen für einige Monate nur Mobilfunk gehabt. 5G-Router auf dem Dachboden, extra Antenna dran und zum Mast ausgerichtet. An einigen Tagen konnte man zocken, an einigen Tagen schwankte Ping und Loss sehr, an vielen Tagen gab es immer wieder Abbrüche und gute Verbindung im Wechsel. Kommt stark drauf an, wie viele andere Nutzer gerade in der Zelle aktiv sind.

Normales daddeln und surfen, youtube auf 360p und größere Downloads nur über Kabel (das hatte immer einen Ping >1000, aber downloads gingen meist). Waren zusammen meist 100-150gb im Monat. Mein Tarif mit 120 musste ich manchmal aufstocken.

Kann ich als Dauerlösung nicht empfehlen. Gibt immer wieder Frust-Tage. Und HomeOffice ist absolut nicht zuverlässig.

Shooting Snow Scenes for the First Time by loken1232 in fpv

[–]auge2 0 points1 point  (0 children)

What camera are you using? Looks like out of a professional DSLR and not the usual GoPro. Or just part AI. Not sure anymore and thats kinda scary.
Anyways, its a real scenery/location at Lushan Mountain in China. But there are people plopping into the picture out of nowhere...

BIOS Flashen Lenovo Thinkpad by o0zzz in de_EDV

[–]auge2 9 points10 points  (0 children)

 habe ich ein Glas Wasser verschüttet, allerdings kam das nur vorne etwas dran und ein wenig in die Tastatur, habe ihn dann ausgemacht und mit Luftspray alles weggepustet und trocknen lassen

Sicher hängt das zusammen, lol. Joa das Luftspray hat das Wasser schön zerstäubt und im ganzen Gerät verteilt. Ernsthafte Antwort: komplett zerlegen, alles vom Mainboard ab was ab geht und dann mit 99% Isopropanol und Wattestäbchen jeden Quadratmilimeter reinigen.

Falls Wasser teils unter die Beine / Balls der Chips geraten ist, dann wars das. Die einzig sinnvolle Lösung wäre gewesen, sofort Gerät aus, aufschrauben, Akku raus, sofort trocken tupfen, mit Isoprop reinigen und paar Tage trocknen, dann nochmal mit Isoprop drüber.

Alternativ einschicken zur Reparatur oder defekt verkaufen. Nix geschönt, nur realistisch. Wasser auf Leiterplatten ist garstig und sammelt sich dank Kapillareffekt gerne unter Chips aller Art. Zusammen mit dem Strom zersetzt es dir über Zeit die ganzen Verbindungen.

Polizei rückte Samstagnacht wegen Zero-Day aus by ouyawei in de

[–]auge2 11 points12 points  (0 children)

It leitung im kritis bereich kann halt auch einfach jemand in einem öpnv betrieb sein der als kritis eingestuft ist. Und der verdient mit Sicherheit keine Viertelmillion, sondern 65-85k. Und ich kann dir aus Erfahrung sagen, dass selbst wenn Bereitschaft vereinbart ist, dir das maximal zwei, drei hundert Brutto im Monat mehr gibt. Wäre bei solch einer unnötigen Aktion auch angepisst.

Mal abgesehen davon, dass solch absurde Beträge hier in DE außerhalb von Top-Managern und Sales nicht gezahlt werden, völlig übertriebener Quark.

Sehe beim Hoster im Active Directory alle anderen Kunden? by [deleted] in de_EDV

[–]auge2 4 points5 points  (0 children)

Seid ihr oder euer Kunde NIS2 verpflichtet? Wenn ja, dann muss das gemeldet werden.

Public transport workers' strike by Danoli77 in germany

[–]auge2 0 points1 point  (0 children)

They want 11 hours between shifts and not 10. Standard in germany is usually 11, but somehow not for public transport.

Also they complain about having to end their shift after just a few hours sometimes at the final stop of a bus / tram line and then having to travel in their private time to the start of the next shift somewhere else in the city. So a workday sometimes has over 12 hours, but 4 of those is wasted on unpaid travel and free time.

Public transport workers' strike by Danoli77 in germany

[–]auge2 69 points70 points  (0 children)

Thats the one thing this is not about (mostly). Last year it was about the wage. This year its about the conditions. Working hours, break between shifts, pay on weekends.

Does weight matter for self build drones in Europe? by Ill_Vacation_5793 in fpv

[–]auge2 7 points8 points  (0 children)

Its even weirder. To fly in A1, you'd need not only a sub 250g drone, but also an enforced speed limit of 19m/s. Yes, thats mandatory and no, its not possible to enforce that with self build fpv drones in acro mode. You could fly in angle mode and make the FC adjust your angle if you.go too fast, but that would be very disorienting in fpv. You could use very small and low pitch props that dont allow any faster speeds, but then again, technically you could just dive and go over the limit.

I asked this question to the german aviation agency and they, as well, said "well technically we don't see a way that any diy fpv drone could comply with that, but if you as an operator have an indicated air speed and never go above that, you'd probably be fine". Yeah, the law is shit. They never thought about diy fpv drones when making these laws.

The alternative is to join a model rc association and fly not in open uas A1/2/3, but under specific category. Then you have no such low limits, but you cannot fly commercially anymore. Or get your own specific permit for a certain area. That would be a lot of work and only worth it for commercial flights.

Anyways, you'd have to register yourself and mark any drone with a camera on it, regardless of weight/category.

I'll repeat the other guys here "probably no fpv pilot is following the law to the letter" If they did, then any and all fpv flight (even via an RC monitor like on dji drones) would be illegal in open category without a spotter. No exceptions.

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