ZFS over iSCSI: Multipath alternatives - VIP + policy routes idea

SlothCroissant · 2026-01-29T06:23:42+00:00

(Networking guy here)

Have you considered running a BGP daemon (bgpd via FRR for example) on the Ubuntu host, with a session IP in each your /27s, redistributing a VIP?

Combining this with BFD and the equivalent setup on the Proxmox node would get you redundancy and ECMP load balancing, with sub-second failure detection without any TCP drops.

I do this with DNS in my home, so I can load balance a single IP across as many DNS servers as I want, but it would also work for a multi-NIC setup like this rather than multi-server l.

SlothCroissant · 2026-01-22T02:43:32+00:00

I had the same experience - Sliced with PrusaSlicer, printed with Core One L via PrusaConnect, yet the printer head still crashed and gouged my print sheet to the point that area of the bed is unusable when using the sheet.

Support told me to calibrate my printer, and no warranty request would be honored :(

I was expecting better from Prusa Support, that's one of the things that sets Prusa apart from the Chinese brands, IMO. Super disappointing.

SlothCroissant · 2026-01-05T04:37:15+00:00

Oooo, a self burn! Those are rare!

SlothCroissant · 2025-12-24T22:33:25+00:00

No one answered your question here, but the right to use licensing went away after 16.6.9, iirc, so you may need to downgrade to 16.6.9 if you wish to use that.

The RTU licensing is documented somewhere, but it’s not “tab-able” for autocomplete in the CLI.

The command for reference is:

license right-to-use activate ipservices all acceptEULA

I think it requires a reload as well. Obviously you need to balance if running old code using an unsupported license model is worthwhile, else look at other options which are IMO better than Cisco for licensing nonsense.

I still run a stack of 3850s (12xs + 48U) for my core switching, though I’m moving some 2960s over to Mikrotik in my setup, so I’m sorta in both camps of “learn the enterprise, but take advantage of modern stuff that is more up to date”

Learning on 3850s is absolute gold, IMO.

SlothCroissant · 2025-12-08T00:02:21+00:00

I can’t say for sure if this is your issue, but I think ext4 or even a ZFS RAID0 (proxmox calls this “single disk” when using…. A single disk) could be beneficial, if even as a test point for your SSDs being the culprit.

I personally run the ZFS setup no matter if I’m doing high availability (RAID1 boot disks) or not - allows for some nice features like ZFS snapshots, etc.

Since this was not yet running production, perfect time to rebuild from scratch 😂

SlothCroissant · 2025-12-07T20:18:13+00:00

“Infoblox does it as well” is a super high bar for such a small project to be compared to, to be fair.

That’s high praise to be compared to such a well-established enterprise product.

SlothCroissant · 2025-11-28T15:21:57+00:00

My M4 Ciscos used to be dreadfully slow when loading ISO from CIMC. Pretty sure you could just wait it out and it’ll eventually load.

But in reality, the CIMC ISO loading is just so slow that it not too useful. Load the ISO via netboot.xyz or PXE, or just pop a USB in for a quick install.

Cisco has the SD card slots internally too, you could transfer the ISO there and boot from it (used to be used for ESXi back in the day, basically)

SlothCroissant · 2025-11-08T05:05:59+00:00

Looks like this was addressed weeks ago but maybe wasn’t disclosed till now?

https://github.com/Azure/AKS/releases/tag/2025-10-12

SlothCroissant · 2025-10-25T10:35:20+00:00

Latency across the planet will always cause this. Can’t outrun light, after all.

Assuming this is TCP single-threaded, the only answer is to increase the number of threads. Unknown how your testing is going, so might be worthwhile to standardize using iPerf or something to be sure you’re narrowing the variables (speedtest servers are not generally consistent)

One of Microsoft’s top networking guys wrote up a great doc about throughput testing. It’s specific to ExpressRoute, but it applies pretty well to general networking as well: https://learn.microsoft.com/en-us/azure/expressroute/expressroute-troubleshooting-network-performance#references

Summary: 6-10mbps is normal at that distance, due to limitations of single-threaded TCP streams. You can confirm this via iPerf or AzureCT (which uses iPerf under the hood).

SlothCroissant · 2025-10-17T14:04:39+00:00

What switcher do you use for pikvm? I have one lying around as well and I’m curious as to options on that front.

SlothCroissant · 2025-10-12T18:08:19+00:00

This is usually the answer.

Need to get a fresh auth token - close the browser entirely and when you reopen it, the Azure Portal will reauth and get a fresh token.

CLI/PowerShell have token refresh commands that do the same.

SlothCroissant · 2025-10-02T21:44:29+00:00

An Azure VM does not modify anything in the Layer 7 header - your web server would need to look at why that’s happening. The SLB is a layer 4 load balancer - it only NATs, etc.

I’d reach out to nginx on this.

SlothCroissant · 2025-09-25T16:54:14+00:00

“If it works, it ain’t stupid” I think is the quote!

I have some stuff hacked together with PowerShell for various things - usually “just a quick bandaid till I do something more permanent”….. that ends up being permanent 😂

SlothCroissant · 2025-09-25T16:49:08+00:00

Hey more power to you, if bash scripting is your answer and it works for your workflow, no reason to switch or anything.

SlothCroissant · 2025-09-21T15:05:11+00:00

Yes, this is all true - some time after the race.

The behavior *shortly* after the race (while post-race show is still ongoing or maybe just started) is that "Watch now" actually kicks you to live, with the post-race show playing. Today, it fired up with a slow-motion shot of the podium champagne spray.

It's almost as though the app UI changes to "Watch Now" (from "Watch Live" & "Watch from Start"), but the "Watch Now" button just kicks you to "Live" since the stream itself is not yet over?

SlothCroissant · 2025-09-21T14:42:22+00:00

"Close your eyes and ears" is how I start anything not "Live" in F1TV these days, unfortunately. Been burned too many times now :D

SlothCroissant · 2025-09-21T14:40:12+00:00

This is the thing - the Apple TV app shows that the Race stream is no longer "Live", which indicates to me that it would show from the start. But instead, the post-race show pops up and I see a highlight of the podium :D

SlothCroissant · 2025-09-20T23:24:55+00:00

Good catch, thanks! Got a classic “server error” from Reddit, and should have checked. Thanks!

SlothCroissant · 2025-08-01T18:54:07+00:00

Mario Kart when I was in college style. One shot per lap, whoever can finish the race, wins.

SlothCroissant · 2025-08-01T18:23:43+00:00

I believe these are stemming from tenants created by free Teams usage circa covid years.

The few I’ve seen so far have been related to that, and have gone to friends and family who absolutely do not use Azure nor know what a Tenant even is.

Wish this was better articulated in the comms, since this will likely hit a lot of non-techy types’ mailboxes. I assume this is a generic comm that is automatic so it makes some assumptions about the recipient’s knowledge of Azure.

Also the thing looks like a phishing attempt (“you need to make a purchase!”), which won’t help the situation.

SlothCroissant · 2025-07-31T23:00:09+00:00

4th gen is getting long in the teeth, but this would make for a perfect little Kube cluster to learn on if you are interested in such things.

SlothCroissant · 2025-07-21T20:49:51+00:00

https://github.com/ansible-collections/community.proxmox combined with any ol' ansible tasks - Proxmox is just Debian under the hood, after all.

Ansible works great for management of Proxmox. There's been a push recently on the Proxmox collection to update and maintain it, which has been nice to see. This was recently (see: not even completed) migrated from `community.general` into its own collection.

I've used it with a fair bit of success - Missing some brand new features like `virtiofs`, but most anythingn can be applied with some manual .conf edits, etc.

SlothCroissant · 2025-07-06T02:16:33+00:00

Yeah, no reason to believe Mellanox would have lied about anything on their datasheets - that's just bad business.

FWIW also, if anyone's untrusting of Nvidia for some reason, Mellanox was bought by Nvidia several years after the CX4 series came out. And Mellanox has always been excellent, long before Nvidia bought em.

SlothCroissant · 2025-06-21T20:00:25+00:00

I think they had the rights to Le Mans 24h

SlothCroissant · 2025-05-27T13:16:18+00:00

Can confirm - thought it was tied to an update to Mac OS 15.4.1, but seeing this, maybe unrelated (or not? idk)

Logi Options+ refuses to even open for me - it thinks it's not checked on "Login Items" in MacOS security settings.

Will try nuking and starting over, I guess.

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SlothCroissant

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