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Set the reweight value for the OSDs back to 1.0

KRBD is an option in the storage configuration of Proxmox. It can be enabled or disabled on the pool and affects all VMs stored there. You would need to create a new pool in Ceph and a new storage on that pool in Proxmox without the KRBD setting. After that you could migrate the VM image to...

Do you happen to use KRBD for the VMs? With LVM on top of a mapped RBD? What is the load of the machines and how saturated is the network? Have you tried to switch to qemu+rbd (userspace RBD) for this VM?

You need to add the physical port eth0 to the bridge vmbr0. Without that there is no way for the network packets to reach the Internet.

Have you enabled compression on the RBD pool for the "vm-compression" storage? https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/#inline-compression

Why would a virtualized Ubuntu 24.04 not be supported by KVM / Proxmox? If you made a snapshot of the VM before the upgrade you could roll back to it.

Weird things can happen when the MTU sizes of the involved interfaces do not match.

The hostname mirrors.tencentyun.com has no IP address in the global DNS. download.proxmox.com seems to be blocked on the "Great Firewall".

I learn something new every day. :)

I do not think that it is possible to live migrate a container. A container are just processes running in a different namespace on the host's kernel. You cannot freeze a process and transport it to another host and unfreeze it there like you can do with a virtual machine.

AFAIK the IPv6 link local address is assigned automatically by the Linux kernel whenever a new interface goes up. As the bridge interface "Servers" should only transport Ethernet to and from the VMs and not the host you could disable IPv6 on it entirely: echo '1' >...

Proxmox needs static IPs. You cannot dynamically assign an IP to a Proxmox node.

If you want to lose data, then yes.

With replication size 3 you have a max usable capacity of 5.2 TB as this is the capacity of your smallest host. Your OSDs are very unbalanced across the hosts which is not good for such a small cluster. This is why the OSDs in pve10 reach the nearfull ratio and refuse to take any more data. You...

If you want to use NFS mounts but not for Proxmox storage just put them into /etc/fstab.

Do you run Crph along with the VMs on the same hardware? The load may be too high: osd_scrub_load_threshold Description: The maximum load. Ceph will not scrub when the system load (as defined by the getloadavg() function) is higher than this number. Default is 0.5. Type: Float...

There seems to be no driver support in the Linux kernel at the moment for this combination.

The qlcnic driver module is for a different kind of devices. You can compare the "alias" section in the modinfo output for both.

There is now a kernel patch available: https://lore.kernel.org/io-uring/8b7a8200-f616-46a8-bc44-5af7ce9b081a@kernel.dk/T/#u OCFS2 seems to be unmaintained.

Check the MTU settings of the network interfaces.