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Naja..., wie du willst ;-) Ich installiere PVE immer auf ZFS. (Und ich habe ein paar klassische, recht alte, Raid-Controller ausgemustert im Schrank liegen...) Sind denn alle Disks gleichwertig, oder sind das SSDs + HDDs? Das wurde anscheinend nirgends erwähnt. Ich unterstelle also mal zwei...

Spätestens seit der Erfindung von ZFS kann man darüber streiten - mit durchaus offenem Ausgang. Ein Hardware-Raid liefert NICHT: herstellerunabhängigkeit; transparente Kompression; garantierte Integrität; (technisch) billige Snapshots; Replikation; einfache Erweiterbarkeit und wohl einige mehr...

War das eine "gute" NVMe (mit PLP; eher unwahrscheinlich) oder etwas billiges? Preiswerte NVMe/SSD neigen im PVE Kontext dazu, nicht sehr lange zu halten. Bitte markiere diesen Thread als "Solved", man kann "oben" den Titel editieren.

Okay, thanks for the reply. This means TrueNAS just sees the "half-virtualized" disks, not the hardware directly. Just be careful and have backups. Even if you know that already I need to point to...

Yes. I am used to use "Virtio-GPU" with Spice. Now I switched a Windows 11 VM to "VirGL GPU" - just for this test. Works the same. For me, in my environment. I do not see/feel any subjective difference and I won't bother to run performance tests.

Out of curiosity: is TrueNAS able to read SMART data of those disks?

You enable HA for a VM, not for a Node. The node where a HA-VM is running will fence (hard reboot) itself when Quorum is lost. Other nodes without a HA resource will not do that. Yes, that's the idea. The direction of the replication switches automatically, depending on where the VM is...

Sorry, I can't. You need to know exactly what services and what quality-of-service you need. Then you specify your hardware requirements, in detail. Are you just "playing" or is it a serious business? When you sell services you want them to be stable, reliable and and as undestroyable as...

That's 1.6 TiB Ram. A single 64 GiB Modul (w/ ECC) seems to cost more than 400 Euros and you need 25 --> 10000 Euros only for the RAM. Seems to fit :-) Reality check please... ;-)

No direct help but only a hint: you need to search for "setup Postfix with authentication on Debian" or similar. You will find a zillion articles; I have no specific one to recommend.

Viele meiner Homelab-Mainboards erlauben das Datum-/Uhrzeit-gesteuerte Einschalten direkt per BIOS-Setting. Andere Kisten kann ich per WOL aufwecken, aus einer crontab heraus. (Oder per schaltbarer Steckdose, "klassisch" oder per "Smart Socket" im Homeassisstant...) Ausschalten können sich die...

Yeah, that's one of the manifold pitfalls everybody enjoys; glad you made it work again! There is only one countermeasure: exercise restore from time to time, not just run a backup ;-) There are situations where stop-mode is recommended, yes. Personally I run all my backups in Snapshot-Mode...

Are you sure you know exactly what this does? I am sure, I do not ;-) My recommendation: return to a default setup, then it will react with the default behavior.

One very low-end approach, with these assumptions: you have two nearly identical PVE server, not clustered one is doing its job, the other is turned off you have sane PBS (with SSDs only, at least for the latest backup) - as you need to have daily backups anyway, right? When the primary...

The very clear and ultimate answer is of course: it depends! If you have enough experience to administrate a Debian server consistently and continuously over years, including disaster recovery, then you may go that route. (And use a single server instead of a cluster.) If the loss of the...

You might produce something like "FABC: optimizing a pool by utilizing the new features of ZFS 2.4" or similar ;-) I would definitely read it :-) I hesitate to roll out that update (in my Homelab) though...

2.4 seems to be in non-sub now: Get:1 http://download.proxmox.com/debian/pve trixie/pve-no-subscription amd64 zfs-initramfs all 2.4.0-pve1 [26.3 kB] Get:2 http://download.proxmox.com/debian/pve trixie/pve-no-subscription amd64 libnvpair3linux amd64 2.4.0-pve1 [50.1 kB] Get:3...

Assuming HDDs: You mentioned Raid6. This gives you the IOPS of a single disk. A verify need to read the actual data, calculate the checksum and compare it with the stored original checksum. There is no single, large file to be read. Instead it needs to read some ten thousands of chunks, possibly...

First compare your expectations with this one: https://wintelguy.com/zfs-calc.pl For 6 * 8000 GB it gives 43.655746 TiB raw - which is shown in the second screenshot of #3. The construction of your single vdev worked as expected. Check zpool get all S and zfs get all S to verify there are no...

The relevant parameter seems to be VolBlocksize: https://forum.proxmox.com/threads/zfs-metadata-special-device.129031/post-564817