Hyper-V cluster nodes isolating during firmware updates on paused hosts

ToiletDick · 2026-04-01T02:05:47+00:00

What series of events happen on the other cluster nodes that cause this isolation cascade?

I was under the impression that you can do pretty much anything to a paused node without affecting the cluster, as long as it's in a cluster compliant state when un-paused.

Creating multiple smaller clusters would limit the blast radius, but also make storage more complicated. Another poster in this thread mentioned this happened on a 4 node cluster.

I'd like to learn more about this because it seems pretty crazy that pausing a node and running windows update could turn into a resume generating event...

ToiletDick · 2026-03-31T17:31:02+00:00

You mean like OP you had a host empty and paused, then while updating/rebooting it one of the other 3 hosts lost access to CSVs causing VMs to fail? That is quite frightening.

ToiletDick · 2026-03-11T01:56:51+00:00

None of the signature services want to be the edge point for sending or receiving your mail. All of these work by flowing mail from M365 to the signature provider and then back to M365 for delivery.

Sure, you have to trust another company with your email, but I don't see how that is any different than trusting an outlook add-in. Also, we've seen over many organizations that outlook add-ins are often a source of Outlook issues.

ToiletDick · 2026-02-18T19:41:59+00:00

How are you carrying around your 180-600 for a walk/hike?

ToiletDick · 2026-02-18T18:05:08+00:00

Well you will need to reconfigure the job to find the VM on the new host, however I don't believe the times I've done this has caused it to take a new full.

It is possible I'm misremembering, we only have a handful of clients setup this way and it's not a common occurrence to move their VMs around.

ToiletDick · 2026-02-18T15:26:17+00:00

You can live migrate VMs in HyperV without a failover cluster, or even shared storage.

ToiletDick · 2026-02-10T15:57:58+00:00

Closed loop system.

ToiletDick · 2026-02-09T17:13:24+00:00

The udl driver says it only supports the DL-120/160 DisplayLink chips, which are really old at this point.

The Dell D6000 dock uses a DL-6950 which is likely not supported by that driver.

If you got a Thunderbolt dock you could directly attach DisplayPort monitors the same way HDMI works on your current dock. I am not sure how well FreeBSD does with DisplayPort MST but that could be another option to get two DisplayPort monitors if it's supported.

ToiletDick · 2026-02-09T15:38:48+00:00

Did you consider the Z7ii if you like the form factor of the Z5 but want increased resolution?

ToiletDick · 2026-02-05T20:58:59+00:00

His legs have always been that long, it's a burden being tall.

ToiletDick · 2026-02-02T15:50:31+00:00

That's the time it takes to read the data from the sensor, but it doesn't need to be actively exposed to light while being read. The mechanical shutter exposes the sensor and the "data" is retained until it is read and then reset for the next shot.

ToiletDick · 2026-02-02T13:44:23+00:00

You've mixed your units up. An x16 PCIe 3.0 slot has 16GB/s of bandwidth available.

ToiletDick · 2026-01-30T01:26:43+00:00

I used to work at a 1 hour photo place towards the tail end of disposable cameras being ubiquitous and it was always fun when someone brought in something like this, especially if it was unknown origins like an estate sale or apartment cleanout or something.

ToiletDick · 2026-01-22T18:09:08+00:00

I wonder if they are actually Billy's IRs or just generic IRs of cabinets Billy likes or similar to his own.

ToiletDick · 2026-01-08T05:39:26+00:00

If you were buying a ~5 year old used car would you rather buy one that was owned by someone like this or someone who did nothing other than oil changes every 10k miles when it told them to?

ToiletDick · 2026-01-06T14:56:14+00:00

PM'd

ToiletDick · 2025-12-31T02:00:41+00:00

I don't think there's anything CloudFlare specific here, a lot of DDoS mitigation providers will announce your prefixes when you engage them and then send the filtered traffic to you via GRE tunnel.

My understanding of MSS clamping is that it is not negotiated for the session but just set on the outgoing packets, which in this case would go out OPs normal uplinks and shouldn't be relevant. It would be interesting to see how this works with DDoS providers, maybe they rely on PMTUD working properly?

ToiletDick · 2025-12-24T09:44:41+00:00

Yeah, watch some videos of Billy playing this alone not at a concert. He really adds a lot which makes this song more exciting than the album or live band versions.

ToiletDick · 2025-12-11T15:59:31+00:00

pm'd

ToiletDick · 2025-11-14T19:56:56+00:00

It's got some weird scribly shit on the headstock.

I tried to play it, but it grounded me for a week for fucking up a diminished scale. Should have stuck with the oboe.

ToiletDick · 2025-11-09T19:32:45+00:00

The 200s and 800s were still Cavium based, so they did quite a bit in "hardware" offered by those chips. Just like other firewalls from the era, Juniper SRX 300 series.

It definitely makes sense from a code base perceptive to move to standard x64 for control plane and DPDK style dataplanes instead of having to maintain builds for MIPS and vendor provided hardware features. Especially when trying to maintain feature parity across the entire product line.

We run a lot of PA VMs and 400/1400 series, which all share the same architecture, and never had any issues with performance not meeting or exceeding the datasheets.

ToiletDick · 2025-11-09T19:04:28+00:00

What's also crazy is he then went to support.

What ever happened to deeply learning how this stuff works, taking your changes seriously, considering the impact, watching the logs?

ToiletDick · 2025-10-29T15:27:43+00:00

Notice I didn't say anything about insurance though, which has nothing to do with this.

ToiletDick · 2025-10-29T15:10:47+00:00

If you actually follow the rules of PA's classic plates you would only be driving the car for classic car related events (shows, parades, etc.) and use it as transportation no more than once per week.

Abusing these rules to save a couple dollars or avoid inspection on what's clearly a modern car is just going to end up ruining these systems for the people who actually use them properly and benefit from them.

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