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An odd idea - maybe this could be an extension to the UI ?

hence it’s more dangerous - you do your preliminary tests for production, everything is cool, you dump you data in - few months later you hit a strange behaviour and realise all your data and backup is corrupt because it was slowly creeping in ;)

Yeah so bottom line is that good old Fabian created a patch that will change the default option to "not so really a passthrough disk", but the underlying qemu problem still persists. See ? I was right, there are some (covered by thick dust) skeletons in that closet ... and alto I'm an idiot...

Good luck !

Yeah, mitigation was suggested few month later, I guess you can imaging what business will say if you suggest "just sit on our hands until somebody graciously will give us a way of fixing that". I'm not knocking of proxmox chap - they have their product that is based on open source projects ->...

Well, story was pretty basic, I was one of first to actually perform the update of proxmox because it was during the christmas, and about 24 * 8TB drives worth of data went to hell (as far as I remember the size of the shelf). I was pretty "displeased" (and maybe was to harsh in the thread)...

I think you're trying to split hairs here. Lvm has more features than RAW but not as many as ZFS. LVM allows to have several VM's on single storage device, and device passthrough should be one per VM. From my (and few other admins) experience LVM seems to be more reliable than RAW disk...

yeah, passthrough direct IO devices ... magically becoming mdraid. Please read the thread from the beginning, not the tail end where some peps hijacked it. Bottom line is that there are esoteric bugs, and if people want to use it - they need to be aware of possibility of having all the data...

that

Ok so I will throw my knickers in the ring as well ;) In interest of full disclosure: - I'm an zfs fanboy (at least since it became available on linux and fixing some of my btrfs headaches). - I mostly use ZFS & ceph, then lvm if need for it arrises. ZFS is an fs that will allow you to go...

No need to, got pretty thick skin, over 30 years of internet does it to you ;) But maybe lets take this thread behind the shed and say "good dog" while we reach for the gun ?

I've never stated I used MDRAID within guest or host. So maybe this is completely unrelated discussion becuase for me a RAW passthrough disk was having issues (later to be even reproducible with ordinary "dd if= of=" within the guest). I don't know all the annals of the discussion surrounding...

OK. Alto this is a very old thread, I think I need to point out that quite few people are quite literally red herring here by trying to talk about different filesystems and other stuff. This issue was completely independent of FS used inside of gues VM. On a very first page, I think post 8...

Hi, It's a simple question, if setting up an ubuntu 24.04 server or latest debian - which filesystem is the best to be used for a light weight (memory and cpu), resizable, fault tolerant fs to be used specifically on top of ceph ?! etx4 has it's issues, btrfs did implode on me during vm...

FYI do you know it was 2017 thread ?

Thanks for the advice on tutorial bit. About the UEFI, well it's an interesting question. I don't get any more maintenance. I only run my own test clusters, and converted two "entities" to using proxmox, so their admin does the heavy lifting - but from my experience, there is no extra work...

It's a bit ironic today I had exactly the same model machines fail in exactly the same way and I had to move all the disks to the spare chassis and use my own guide.

Kernel upgrade; TLDR: Well, I've noticed that DKMS fas failing to compile against the newer version of kernel (problem with linking due to missing functions). Before it I had to hand hold kernel upgrades my self, later some machines simply god stuck on older kernel. And when I was digging...

Thanks for the heads up mate ! My story now is that after many falured of DKMS module with new"er" kernels, I had a quick word with my self: "What the hell are you doing ?!", and I followed with a simple math: my_hourly_rate * hours_I've_been_messing_with_this_realtek >...

Turns out that some switches that are able to pass it have this option turned OFF by default. But thanks for the hint.