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The screenshot lacks the important part of the error, but i suppose that is an INACCESSIBLE_BOOT_DEVICE [1] You must apply "mergeide"[2] before doing the p2v conversion. If you don't it won't boot properly even if it has proper drivers, which is the case if you connect the disks in the VM to...

Use text based UI during install + nomodeset [1] [1] https://pve.proxmox.com/wiki/Installation#nomodeset_kernel_param

Missing a lot of detail here and I may be wrong, but would like to avoid confusion for future readers: that config is not a Ceph Stretched Cluster [1]. That config is a "simple" crush rule that uses a datacenter entity as the primary fault domain, then host. Ceph Stretched cluster mode is a...

True, USB4 is much similar to Thunderbolt and does support networking. Previous USB standards don't have such support, AFAIK.

It slows down the first write I/O of a non-backed-up-yet block because it has to read that block and store it in the backup. If the block has been backed up already or that write isn't the first of the block, it isn't slowed down. The proper strategy for this is to create backup first to a...

Thanks for detailed report. Will try to setup a test environment and try to reproduce the issue following your steps, as I'm curious about this issue and may hit me eventually. Will take me a few days, though... IIUC, PVE has a 1500 MTU on the nic used to reach PBS? QEMU backups create a QEMU...

But for that OP would need some kind of nic that can be used for such fabric, something USB doesn't provide. Or am I missing something? Still haven't played with PVE9.

I agree with @lucius_the regarding the "knobs", as it would allow getting the most of any hardware configuration. We all know both PVE and PBS are run in a very broad spectrum of hardware. At the very least something that can be set on datacenter.cfg, even if it's just CLI. To me having to edit...

Dreaming is free :) Unfortunately USB isn't thunderbolt and AFAIK USB does not implement native networking support that may show up to PVE as a network interface that you could use i.e. to create a mesh network like the one you show. I remember there are/were some cables that have some chip that...

I'm missing important details here, like the storage used in these nodes and some VMs configuration. When backing up a VM, a snapshot is created at QEMU level. When the VM wants to write data over a block that has not been backed up yet, that write is halted, the about-to-be-replaced block(s)...

In fact I gave you a lot of knowledge and experience regarding Ceph and describing much more than a one node failure but the general rules so you can estimate N failures and dimension the cluster appropiately. Never said such thing and dunno what made you think it works that way. Backups have...

Make sure you are mirroring both Debian and Proxmox repos, including Ceph one(s) if you plan to use it. Once mirror is done, you have to use the mirror [1] from PVE. I find it easier to install Nginx on the POM host and add the appropiate apt entries in a .list file (sorry, don't have any at...

I've used POM to install Ceph Reef + PVE updates on a fully offline cluster. Just add the appropriate repos to POM, run the mirroring process and change the system repos to point to your POM. Sadly the clien't did not want suscription for that cluster, so I can't tell experience on how POM works...

Glad you found it. Had a half written post suggesting you to check pvedaemon systemd unit, as any process started by a systemd service inherits the environment of the service itself + any other envars set when starting the process. Here is where pvedaemon could read a setting from datacenter.cfg...

It does not. At least not under every circumstance. There's zero guarantee that you will get that second copy done to any OSD: if the primary OSD fails/breaks/can't reach/whatever and/or the secondary OSD is unable to write the data and before that second copy is done your primary OSD fails, you...

Hibernating the VM isn't best practices, which recommend either migrate the VM to other host of the cluster or full shutting them down and start again (besides having backups, etc which isn't relevant in this case). I can confirm that you can install updated packages with running VMs without...

That would be a let down. This should be easily adjusted i.e. at datacenter.cfg so a normal restore from the web UI applies them (i.e. non root user(s) with enough privileges to restore their VMs). I would be ok if you had to use cli to set those values, although IMO they should be available in...

PVE will let you choose ZFS even if you have raid, but you will be running a fully unsupported configuration and when issues arise no one will be able to/willing to provide support. Check your hardware: many SmartArray allow to either change their personality to JBOD / IT / Passthrough mode or...

Besides what you've been already recommended (specially related to the technological debt), I would like to mention that snapshot and thin provisioning for shared iSCSI/FC LVM is in the works and expected to come with PVE9.x

Don't know what you are referring to. You simply get the hosts to a set of switches, configure L2 connectivity (bonds, vlans, trunks, etc) and configure a bridge in each PVE connected to the appropriate hosts nic(s). VMs will be able to communicate with each other even on different hosts. You...