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Sorry, no recommendation from my side. My main criteria would be: "Power Loss Protection"/"PLP" present? Most manufacturers have publicly accessible datasheets of their products. If you had linked them I possibly would've looked at them.

Yes. The remaining hosts wait a minute for the lost node to come back - perhaps it was just a glitch on a network connection and that node is actually still running. Who knows? After (up to) ~two minutes HA-VMs should start on another host. There is a detailed description of a staff member...

Ich wähle "VM statt Container". Durchaus aus mehreren Gründen, aber "bessere" Backups sind einer davon.

If I understand that correctly you want to share a Screen / a Desktop and not a VM in the PVE sense. As far as I know there is no such a mechanism established yet. (I would be glad if someone proofs me wrong!) That's why I would just use a "classic" tool like RustDesk to give adhoc access to a...

Siehe auch https://forum.proxmox.com/threads/kann-sdr-usb-stick-nicht-an-lsc-durchreichen.165568/

Siehe auch https://forum.proxmox.com/threads/kann-rtl2838-dvb-t-usb-stick-nicht-an-lxc-durchreichen.165570/

You did not say anything about the kind of the data. So we need to calculate with "backups of your vacation videos" - which are usually not compressible, as they are already compressed. In that case @news is absolutely right. In the context of PVE and VMs the result is smaller than 16 TB...

Well, you can create a cluster with a single node. Actually that's what you do when you bootstrap a cluster ;-) @spirit already mentioned the manual workaround to administrate a node when the other one is down. My recommendation is - of course - to add a Quorum Device...

Actually I had never heard from them. Looks interesting :-)

That's "defect by design" from the beginning. Been there; done that! For a good and useful Ceph experience you really need want some more resources: https://forum.proxmox.com/threads/fabu-can-i-use-ceph-in-a-_very_-small-cluster.159671/ ---- Edit: my first sentence may sound a little bit...

Was it required at any time??? A separate Second-Level-Cache will hold some data for repeated read access. This does not really happen for PBS - as far as I understand the mechanism. Please note that (First-Level-) ARC is present in any case. And metadata is stored there - in RAM. (Actually...

See https://pve.proxmox.com/pve-docs/chapter-pvecm.html#_corosync_external_vote_support

There might be an underlying LVM on that device. Look under <vmid> --> Disks --> LVM and remove it. Then you can "wipe".

There is the concept of a "Restricted HA Group": https://pve.proxmox.com/pve-docs/pve-admin-guide.html#ha_manager_groups It controls on which of the nodes inside or outside a defined group a resource is allowed to run on.

Du verrätst uns rein gar nichts über deinen PBS. Warum nicht? Keine Angaben --> reine Spekulation: Meine ersten PBS-Instanzen hatten nur Blechplatten. Am Anfang lief das gut. Dann, mit zunehmenden Füllstand, traten Timeouts auf. Ich konnte die Backups nicht einmal mehr auflisten. Stellt sich...

Ja. Und zwar Shutdown...Start, von außen. Nicht "reboot" von innen. Der KVM-Pozess auf dem Host muss angehalten werden, um CPUs hinzufügen zu können. (Es gibt allerdings auch einen "Hot-Plug"-Modus (<vm>-->Options-->Hotplug)..., aber unter welchen Bedingungen der funktioniert, ist mir...

Da liegt eventuell ein Missverständnis vor. Out-of-memory geschieht auf dem Host, (möglicherweise) weil den VMs zu viel Ram zugewiesen wurde. Die Frage nach ZFS wurde ja schon gestellt. Falls ja --> ARC begrenzen. Der schrumpft zwar auch dynamisch, aber oft schlicht zu langsam, so das OOM nicht...

I have never used that, but it seems to be possible: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_certs_get_trusted_acme_cert

LVM is a well established system. But you lose a lot of these features: https://forum.proxmox.com/threads/fabu-this-is-just-a-small-setup-with-limited-resources-and-only-a-few-disks-should-i-use-zfs-at-all.160037/ And yes: always use "Enterprise" class with PLP and "some" redundancy.

That's simply not the way it is designed to be used. That said..., this is Debian. You can install whatever GUI you want and then use a browser in that environment to access https://localhost:8006 ;-) Some hints: https://pve.proxmox.com/wiki/Developer_Workstations_with_Proxmox_VE_and_X11...