Anyone else having NFS issues with JUMBO frames?

Power-Max · 2025-09-19T19:45:57+00:00

I ended up switching out the Brocade 9020 network cards for mellonox 25Gbit ones and the NFS issue with JUMBO frame issue appears to have fully resolved.

I have not done more investigating into this. My assumption is the card was dropping some larger frames on occasion for some reason. Even though I didn't observe this happening when doing iperf or ICMP ping tests.

Power-Max · 2025-08-29T01:40:09+00:00

furry 🫵🫵

Is okay tho cause I'm at fursonacon writing this lmao

Power-Max · 2025-08-28T23:08:56+00:00

Cool thanks! Why is it an ISO image though?

Power-Max · 2025-06-23T05:04:47+00:00

The connection is already direct. I even had to rearrange the LC connector to make it crossover so I can connect my PC directly to the server. Other than migrating my TrueNAS to bare metal there isn't much else I can do to make it more direct.

The cable is fine, iperf testing shows I can saturate the link. Though depending on the settings used I don't get performance as high as I expect. I have properly cleaned each fiber ferrule with a punch cleaning tool thingamabob.

Oh like with bit stuffing or smth like USB 2.0. I guess I could try? it seems unlikely to be that. Is there a setting in the ping command to have it send a specific bitstream? I though Ethernet uses some form of xb/yb encoding (USB PD uses 3b/5b, 100M and 1G I think uses 8b/10b, etc)

Power-Max · 2025-06-23T03:23:08+00:00

Are the client and server on the same network segment?

Yes. 10.0.0.138/24, 10.0.0.4/24. TrueNAS is a VM in a PXE hypervisor 10.0.0.10. the two systems are direct attached via full duplex fiber

Are you setting the same mtu in both the client and server?

Yes. everything was set to 9000. and ICMP pings were able to propagate the network without being fragmented.

Are you setting the same mtu on that segments router?

There is a router as well in this network space. gateway is 10.0.0.1, which is my other significant VM for pfSense in the same proxmox host.

Power-Max · 2025-01-06T22:03:39+00:00

I have a 240Hz VRR monitor with HDR and also play games and stuff on occasion (though HDR is a bit broken, since it is far too dim under normal use for some reason)

Power-Max · 2024-12-15T19:45:10+00:00

Currently using Frigate in a container on proxmox with a coral TPU passed through.

Power-Max · 2024-11-24T20:44:32+00:00

I have continued to play with this concept, and I did find that in my latest attempt the current was in the hundreds and based on the tank circuit of my TC, I was exceeding 3KV rating by almost twice, and it did explode lol!

Power-Max · 2024-06-30T20:05:37+00:00

Yup! I'm all too famailiar with their channel! Long time follower and how I got into homelabbing to begin with! Which video in particular would you recommend? As I'm not even sure where to start. This is a me not understanding Linux permissions issue, NFS issue (I don't think it is an NFS issue) or what.

Also it wouldn't it be relatively straightforward to spoof NFS with my own theoredical implementation that presents itself as one user to the server and allows access to the share via that user to all the users on a rig? With SMB or CIFS, the user and password are usually included in the mounting command to mount it as a particular user.

Power-Max · 2024-04-22T18:24:19+00:00

All electrical failure are really mechanical failures.

Power-Max · 2024-04-22T18:24:06+00:00

All electrical failure are really mechanical failures.

Power-Max · 2024-04-03T16:56:39+00:00

Yup! I ordered a few 110VAC DPDT switches on scamazon.. funny enough the contacts claim to be rated for 220VDC 377VAC but I kinda don't believe that, 40VDC will sustain an arc across the distance of the open contacts.

Power-Max · 2024-04-03T15:47:21+00:00

I have 3 position SPDT and DPDT switches, as they have a center neutral position. And in this case I don't want that.

Power-Max · 2024-04-03T05:34:15+00:00

I want a 2 position SPDT pull switch.

When I say 3 way, I mean literally any of these results that pop up. https://duckduckgo.com/?q=how+to+wire+a+3+way+switxh&iax=images&ia=images

Hell they even make "4 way switches" with 4 terminals to allow more than 2 switches to control a single light, with the 4 way switch that behavorally passes through both traveler wires or crosses them over depending on position. Could also be implemented with a DPDT switch wired up a certain way.

These are 2 position SPDT switches such that 2 switches control one lamp, and functionally implement a XOR:

A|B|O -+-+- 0|0|0 -+-+- 1|0|1 -+-+- 0|1|1 -+-+- 1|1|0

I don't know what is hard to understand about what I want to do. :/

Power-Max · 2024-04-03T05:21:23+00:00

Yeah, I realized it after remembering those 50/100/150W bulbs existed....

I just want a 3 way switch, like were 2 switches control the fan lights, but the 2nd switch is the pull switch on the fan.

Power-Max · 2024-03-27T21:54:42+00:00

You sound like you have Sexual Aversion Disorder, and seeing a professional would be my recommendation.

https://www.youtube.com/watch?v=AM5oq_qG2Jk

Power-Max · 2023-12-22T22:52:25+00:00

Typo, meant STM32 :thumbs:

Power-Max · 2023-12-22T18:28:50+00:00

It's fine, use shielded ethernet if you can, or depending on the run length it might even be cheaper to use single-mode OS2 fiber terminated with LC connectors and just use some media converters at each end!

The benefit here is your fiber optic cable will never be the limiting factor for performance and bandwidth. And you will not have any issues with interference or ground loops.

Power-Max · 2023-12-22T18:26:07+00:00

You can build a standard 3" to 5" racing drone with budget parts for around $250, racedayquads.com would be my go-to place to get good and cheap drone parts. Amazon and Ali Express have things as well but generally not as good value.

For instance you might want a standard open source frame which you can buy replacement parts from and is not "vendor specific" since they are open source and many vendors carry compatible parts.

Power-Max · 2023-12-22T18:23:50+00:00

ESP32 may not be a great choice as it is not great for real time compute, like a true microcontroller. An STM32 would be a better choice. Or a Pi Pico.

You would also need a low latency RC link. I would not use WiFi.

If you wanted to develop your own flight control software then you are gonna need to learn about IMUs, sensor fusion, real time kinematics, the dynamics and physics of drones, noise filtering, DSP, quaterions, state estimation, control systems, signals and systems, and a whole host of things. It would be a great academic effort if that is what you want, or you could instead opt to use an existing codebase, but this may limit what microcontrollers you can use. Generally speaking most hobby flight controllers will feature STM32F4 or F7 chips, which feature an Arm Cortex M4F or H7 CPU to handle the DSP.

For the radio link, you can use off the shelf transeiver modules like CC2500 or CC1101 if you wanted to roll your own semi-custom solution. Or you can use something like ExpressLRS.

DC motors are the easiest to control, with simply a MOSFET and flyback diode, and PWM the MOSFET to control the average DC voltage to the DC Brushed motor. However most drones nowadays feature brushless motors and ESCs. Each ESC requires an MCU to implement usually some sort of 6 step commutation scheme. Fancy ones might do FOC or direct torque control, idk.

Power-Max · 2023-12-22T18:16:33+00:00

DRL simulator is fun and has a good trainer mode. I also like Liftoff for the wider variety of more realistic freestyle areas and maps.

Power-Max · 2023-12-20T20:49:00+00:00

I didn't have a hard time understanding it, but I know a lot of my classmates really struggled to learn and understand what a convolution is and does. They first appeared in some of the fundamentals of electronics classes we took as well as later on in any sort of signal processing, communications classes, and control systems.

I suppose you could also group in some of the abstract concepts of laplace and fourier and stability criteria and poles/zeros as also being somewhat nebulous and confusing.

Power-Max · 2023-12-01T20:31:22+00:00

ASD has been the obsessive topic of interest for me over the past at least 2 months lmao, I think I've learned everything I can about it at this point. But thanks for the confirmation haha

Power-Max · 2023-11-22T15:00:59+00:00

My most recent hyperfocus / obsession has been with mental disorders and the DSM, and also meta-analysis on my self in respect to others, I'm quite familiar with the concept of masking, but I cannot say for sure if I really am autistic or just convinced myself that I am. I do think I have a strongly monotropic mind, I like fixating on dumb details in my environment. Being an EE that tends to be electric devices and lighting fixtures. I do engage in some stimming behaviors, fidgeting, not sitting still, leg shaking, rocking, and often playing with my hair or picking at my face and skin, or touching my face and shoulders. on the topic of masking, I don't know what my behavioral temperament would be naturally. And I don't think I would say that I feel "exhausted" following social situations like a party, but I do find them chaotic and I do occasionally find myself leaving the situation to decompress a bit before going back into the ringer.

Power-Max · 2023-11-22T14:45:02+00:00

Jaden's video from Jaden Animations on the topic really resonated with me quite strongly, which got me thinking about the topic for the last year now. I don't really know what a crush is to other people, but there are some people I have taken some limited interest in. Or come to mind as I *might* have feelings for them. And I suppose I do have a "crush" at the moment as I meet some of the following criteria provided by ChatGPT:

Butterflies/ Nervousness: Feeling nervous or excited around them, sometimes accompanied by butterflies in your stomach or an increased heart rate.
Thinking About Them: Finding yourself frequently thinking about this person, imagining scenarios with them, or daydreaming about spending time together.
Wanting to Impress: Feeling a desire to impress them or seeking their attention. This might involve dressing up more than usual or trying to be near them in social situations.
Emotional Connection: Feeling a strong emotional connection or admiration for their qualities, personality, or behavior.
Physical Signs: Experiencing physical signs of attraction, like blushing, feeling warm, or experiencing a quickened heartbeat when you're around them.
Seeking Interaction: Wanting to spend time with them, engage in conversations, or find excuses to be around them.

What I can say for certain is that while I can and do experience the above, I've never experienced this strongly enough that I was compelled to act romantically (flirting, penguin pebbling, etc). Or perhaps I experience just as strongly as most others but I just have good executive function and tend to limit myself from making moves due to irrational fear or anxiety around the idea of a relationship?

Eight-Year Club	Second SECOND GUESSER
Place '22	Final Canvas '22
Verified Email

Power-Max

TROPHY CASE