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  1. i9-12900K - Poor performance in VM?

    https://browser.geekbench.com/v5/cpu/14712640 - Ran on node (2012) https://browser.geekbench.com/v5/cpu/14712821 - On VM (1438) Can anyone tell me why the virtual machines performance seems to be significantly lower?
  2. GRE tunnel public IP in virtual machine - Traceroute showing full route

    `88.198.49.xxx` = Hetzner (will run virtual machines on this) `141.94.176.xxx` = OVH (contains block below) `164.132.xxx.0/28` = IP block to use on Hetzner as virtual machines To get GRE set up I ran the following: OVH: ip tunnel add gre1 mode gre remote 88.198.49.xxx local...
  3. Route OVH IP block to Hetzner to be used by virtual machines?

    Public IPv4 server 1 (OVH bare metal) : 141.94.199.xxx Public IPv4 server 2 (Hetzner bare metal) : 5.9.105.xxx IP block I want to use on server 2: 164.132.xxx.xxx/28 (OVH IP Block) Can someone please assist me on how I can do this via GRE tunnel? Both have Proxmox installed. Also what would...
  4. proxmox-backup-client failed: Error: EUCLEAN: Structure needs cleaning (500)

    One of my PBS datastores are showing the following error across multiple nodes proxmox-backup-client failed: Error: EUCLEAN: Structure needs cleaning (500) What could be the cause of this? The datastore verify job passes
  5. Backups for all machines show Input/output error (os error 5)

    I am getting the following error code for all virtual machines. Rebooting the PBS node temporarily fixes this. VM 231 qmp command 'backup' failed - backup connect failed: command error: unable to read "/mnt/storage2/PBS/Alpha/vm/231/owner" - Input/output error (os error 5) What are some of the...
  6. PBS storage slow load and timeout issues

    As you can see from this gif https://gyazo.com/3f5c7ff162709258e8f335aa0bc1d728 PBS sometimes takes 30+ seconds to load and even timeouts. How can I diagnose the issue? The latency between the servers is low. It feels like once it loads other backups of other virtual machines load faster as if...
  7. error while writing to file /sys/class/net/eth3/mtu: [Errno 19] No such device

    Today after months of this configuration working it has just stopped. When trying to restart the network I get the following error warning: error while writing to file /sys/class/net/eth3/mtu: [Errno 19] No such device /etc/network/interfaces auto lo iface lo inet loopback auto eth0 iface...
  8. CPU limit value does not work consistently

    Can someone please explain to me why the CPU limit seems to sometimes only work for a few hours? Also is there any alternative ways on limiting CPU. In production environments where you are selling CPU (fair share) resources how else can I limit CPU abusers
  9. job failed with err -5 - Input/output error (BTRFS) transfer/backup/clone

    After testing btrfs for a few days it seems every day more virtual machines are having this same issue when trying to create a backup. Transfer (BTRFS > ZFS) 2021-09-25 22:16:24 starting migration of VM 520 to node 'NODE1' (192.168.0.120) 2021-09-25 22:16:24 found local disk...
  10. grub_is_lockdown after upgrade to 7

    After upgrading to 6 > 7 and then rebooting my OVH node is showing the following error error: symbol 'grub_is_lockdown' not found. Entering rescue mode... grub rescue> I currently only have access through rescue. Changing boot order straight to hard drive shows the following on boot
  11. btrfs on Proxmox 6? Cluster

    I connected my new Proxmox 7 with btrfs into a cluster that uses Proxmox 6 however there is no option to add btrfs via the GUI in 6 Is there another way?
  12. Route IPv6 through another interface? OVH

    I am using OVH vRACK on vmbr1 iface vmbr0 inet6 static address 2001:41d0:803:8400::1/128 gateway fe80::1 up ip -6 route add 2001:41d0:803:8400::/56 dev vmbr0 auto vmbr1 iface vmbr1 inet static address 192.168.0.122/16 bridge-ports bond1 bridge-stp off bridge-fd 0...
  13. IPv6 stopped working after upgrading to 7

    After upgrading to PVE 7 IPv6 has stopped working. If I restart the network (ifup -a) the 2001:41d0:803:8400::1/128 does start pinging until the node reboots again and the virtual machines then start pinging too. auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto eth1...
  14. MAC of multiple virtual machines change

    arp -a output shows the following ipxxx.ip-51-89-201.eu (51.89.201.xxx) at fe:ed:de:ad:be:ef [ether] on vmbr0 After rebooting the VM (MAC returns correctly) ipxxx.ip-51-89-201.eu (51.89.201.xxx) at 02:00:00:9b:81:48 [ether] on vmbr0 What could be the cause of this? It seems to happen to...
  15. Restart all virtual machines network?

    Some of my virtual machine have lost network connectivity (I believe from the node reaching 100% RAM before it swapped) is there a way to easily disconnect/reconnect their network? systemctl restart networking on the node does not work. The only way I have found so far is just to...
  16. zram on a NVMe overkill?

    I have the following NVMe PCIe 3 drive that I will be using as swap SAMSUNG MZQLB1T9HAJR-00007 https://www.scan.co.uk/products/192tb-samsung-pm983-25-u2-ssd-pcie-30-x4-nvme-mlc-3d-v-nand-3000mb-s-read-1900mb-s-write-540k-50k-io The question is do I really need to use zram? What kind of...
  17. btrfs RAID0 3 disks

    I came across the following on creating btrfs. I am curious what do you guys suggest if I want performance? What are the pros/cons for each # Create a filesystem across three drives (metadata mirrored, linear data allocation) mkfs.btrfs -d single /dev/sdb /dev/sdc /dev/sdd # Stripe the data...
  18. CPU limit is being ignored?

    As you can see the CPU should be capped at 75% (3 CPU Limit) but it it constantly goes above this. If I manually update this setting again (changing 3 to 2 and then back to 3 again) then it starts taking effect again. I have seen this happen a few times now. Is there a bug that causes this? I...
  19. swappiness value is being ignored (100% RAM being used)

    swap is not kicking in until the server reaches 100% RAM. I am not sure why but my Proxmox node is acting as if the swappiness value is set to 0 cat /proc/sys/vm/swappiness 10 free -g total used free shared buff/cache available Mem: 503 498...
  20. OVH how can I add IPv6 through vRACK vmbr1

    I use the following configuration connected to vmbr1 to get IPv4 working through OVH vRACK network: version: 2 ethernets: eth0: addresses: - 51.195.1xx.89/28 - 2001:41d0:802:8xxx::3/128 gateway4: 51.195.1xx.94 gateway6...

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