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PVE still knows how much memory the vm consumes.

On my workstation I compile kernel and zfs myself and from 0.6.4 to 2.0 never had any problems. zfs is very stable, no reason to not upgrade.

https://forum.proxmox.com/threads/ballooning-with-windows-guest-issues.79920/post-353591

Never mind I skipped that you checked arc usage. Then it's probably related to https://forum.proxmox.com/threads/ballooning-with-windows-guest-issues.79920/post-353591 Disable memory ballooning as workaround.

Like spirit said, for the bridge enable "vlan aware" and for the vm hardware nic specify a vlan id. Then tag your pve host with the vlan in your switch. You will still need a gateway and do nat if you want your vm's to have internet access.

run the following update-initramfs -u && reboot

Subvols are for inheritance, childs inherit options from their parent volume. If you got vm/vm-x, and container/container-x you can set options on vm for every vm etc. So it's best practice to use it. For options use lz4 compression which is default in newer version and disable atime for...

How are the drives connected ? hba / raid controller or directly to the mb ? They have unexpected power loss which is quite high. Crucial also has some read errors. Poweroff the server and replug the drives on both ends. Try to import the pool, if it doesn't work unplug the crucial ssd and...

Doesn't really matter, both works. 10G links for 1TB doesn't really make a difference, only changed data is send over the wire which totals to maybe 1-5% in most cases. Even with USB3 or 1G link backups should take less then 15 minutes. Backup storage doesn't necessarily need to run in raid...

ecc memory has nothing to do with it. it seems more like a broken disk, zfs is software based and sometimes can't prevent kernel panics if the drive controller goes nuts. please post smart values of every drive e.g. "smartctl -a /dev/sda", this can tell if a disk is bad, otherwise it's cables...

That's odd. Proxmox dosn't keep /boot/efi mounted after boot. But "efibootmgr -v" should list the efi entries if they exist. Should print the disk gpt partition id like: Boot0000* Linux Boot Manager...

Du kannst block devices einfach direkt mounten. Wenn ubuntu als ext4 ohne lvm installiert wurde reicht auf proxmox ein einfaches: mkdir -p /mnt/100 mount /dev/zvol/rpool/data/vm-100-disk-0-part2 /mnt/100 Mit lvm musst du halt vorher die logical volumes scannen und dann mounten. Vorausgesetzt...

Grub gets installed as fallback. systemd-boot is used in efi mode, grub for legacy boot. It's a bios setting, select uefi/efi boot mode instead of legacy.

yes it's a live system, put it on a usb stick and boot it. you can then select to clone the hdd to ssd including boot partitions and everything.

https://clonezilla.org/

Seems like I skipped that part. Please post a screenshot of the vm hardware window. I would recommend using virtio iscsi (vioscsi) instead of virtio block (viostor)

Its a windows issue... windows does not come with virtio drivers. Download the driverse here https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso Add a disk drive with the iso and install it via load driver at the disk screen

This bothers me as well a simple 60gb backup already creates 65,000 directories with over 133,000 files. Due to the high file count bandwidth is limited by iops which for hdd's will result in terrible performance. On the other hand they won't increase chunk size as this will result in...

Versuch mal den zfs import cache neu anzulegen

Du musst unter Datacenter -> Storage -> Add -> ZFS Die pools für proxmox hinzufügen.