virtio

  1. VirtIO NIC checksum fail & poor speed

    Hey all, I have a 3 node cluster (6.0.4) each with dual 10Gb Intel NICs. On both Windows and CentOS 7.x VM's I have VirtIO 10Gb networking installed. I have zero issues with Windows. On CentOS I find that any files that are moved to/from a network share fail checksum. There also seems to be...
  2. OMV, Nextcloud mit RAID & Proxmox?

    Hallo, ich bin Neuling mit Proxmox und Virtualisierung mit Servern. Mit Linux kenne ich mich aber schon seit mehr als 6 Jahren aus. Zu Hause möchte ich einen neuen Heimserver einrichten. Vorwiegend sollen darauf Proxmox, Open Media Vault und Nextcloud laufen. Open Media Vault, so habe ich...
  3. Connection lost when high traffic

    Hello! Proxmox newbie here. Got Proxmox 6, some windows 2016/2019 VM with virtio net driver. When the traffic on the network is high, the connection randomly drop. I must the disable/enable the device and it restart. I've tried everything i could find on the web, but every solution fail. The...
  4. I can't passthrough my mellanoxMT26488 10GiB nic

    I've tried to blacklist all the drive that related to this NIC, but it still keeps saying that this device is " Device or resource busy " I followed docs from "https://192.168.50.189:8006/pve-docs/chapter-qm.html#qm_pci_passthrough" multiple times, but the result is the same. other than that...
  5. New virtio windows drivers released, now with installer

    As mentioned here: https://www.phoronix.com/scan.php?page=news_item&px=VirtIO-Win-Driver-New-Installer https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/5MOIEDEUDPRICGIKH4W5MS6BLZSXOJT6/ New virtio drivers are out, now an installer is included. According to the...
  6. [SOLVED] VirtIO and Qemu-GA

    Hello, i've just spin up a Proxmox host to test it's potential, i've now installed several W10 and Linux VM, using the Stable virtio-win ISO, but using the latest qemu-ga ( to have the ip info on the dashboard) for the windows VM, while using the standard apt install qemu-guest-agent for the...
  7. Assigning IPs to Windows Server Template

    I'm using WHMCS and Proxmox, also I'm using the Proxmox Module Garden addon to create a VM after I accepted the order, then its automatically cloning the template. Everything works, except for assigning the IP to the network adapter. So I need to change the IP manually to get an internet...
  8. How to use Virtio-blk-data-plane in Proxmox instead Virtio-SCSI?

    Currently with VirtIO-SCSI (VirtIO-SCSI Single with threads) have max IOPS is ~1.8k-2.3k. But Virtio-blk-data-plane may have over 100k IOPS https://www.suse.com/media/white-paper/kvm_virtualized_io_performance.pdf May I switch to Virtio-blk-data-plane instead VirtIO-SCSI in Proxmox?
  9. [SOLVED] Windows 2012 r2 - have not VirtIO disc on installation

    Hello. I'm new user Proxmox. I trying install Windows 2012 r2 on VM. Following the tutorial: https://pve.proxmox.com/wiki/Windows_2012_guest_best_practices i made VM: root@pve:~# qm config 100 bootdisk: virtio0 cores: 20 ide0: local:iso/virtio-win-0.1.164.iso,media=cdrom,size=362130K ide2...
  10. [SOLVED] Proxmox + Windows Server 2008 R2 + Virtio Network = Can't get DHCP IP address

    Hi, I have already figured out the fix for this but posting it to help anyone else. In my network all my VM machines were getting DHCP properly except this machine Windows Server 2008 R2 with virtio network. I installed an Intel virtual adapter and suddenly DHCP was working. Virtio Network...
  11. KVM VM Internet Upload Speed Conciderably Slower

    Hello, I have a ubuntu 18.04 guest running in a KVM due to kernal modifcations for a WireGuard server to run on it. When preforming a speedtest with speedtest-cli, I get the following output: Testing download speed... Download: 73.61 Mbit/s Testing upload speed... Upload: 3.60 Mbit/s Which is...
  12. [SOLVED] Low disk performance in windows vm on optane

    Hi, I've been doing some pre-production testing on my home server and ran into some kind of bottleneck with my storage performance, most notably on my optane drive. When I install a Windows vm with the latest VirtIO drivers the performance is kinda dissapointing. I've tried switching over from...
  13. Problems with web-interface on PVE 5.2 host

    I freshly installed PVE 5.2 and have some issues w network: it worked well, then suddenly (while preparing VM for Graphics passthrough) I lost web-interface from external machine on same network. I managed to finish passing through GPU to one of VMs and webinterfece generally works from VM...
  14. DerDanilo

    SSD/NVME passthrough, support ssd/flash flag, rotation_rate=1/0

    It should be possible to set a virtual disk drive to be backed by an SSD/Flash device. Virtio SCSI with SCSI, VirtIO and SATA drives should support this. Virtual box supports this since 2014, when can we expect this to happen in PVE? According to the upstream sources this should be possible...
  15. Unknown device in Win7 VM

    Hi, since I upgraded my proxmox server to 5.3 and after installed a new Win7 VM, I'm facing with an issue. In the devices manager, a new uknown device appeared and for which there is no drivers found in the virtio driver iso. It seems this new device (qemuvgid) is linked to a PVE new feature ...
  16. Odd problem with VirtIO NIC

    I recently set up pfSense in a Proxmox VM, and while it works as an OpenVPN endpoint, it has displayed a couple of odd issues when attempting to connect from the VM to the host (ie, to the Proxmox GUI.) When the VirtIO NIC is selected, I cannot connect to the Proxmox host (though, weirdly, I can...
  17. FreeNAS virtIO/PCI passthrough LACP

    Hello, I'm currently virtualizing my FreeNAS to VM on my proxmox. However, I have a problem. These are the tests I did. On proxmox: For debian the LACP is working properly. (network virtIO bonding on vm) For freeNAS the LACP does not work. (network virtIO lagg on vm) Physical machine Same...
  18. Migrate Windows from Hyper-V to PVE

    Hi, I'm trying to migrate Windows Server 2016 from Hyper-V to Proxmox. I copy the vhdx disk file, convert it to qcow2/raw but when I try to boot it doesn't work. Guest can't find bootable hard disk. When I boot Win2k16 DVD and add virtio scsi driver I can see expected Windows partition scheme...
  19. PPPoE Over VirtIO 802.1Q VLAN - Multiqueues? (pfSense)

    I have have successfully configured 3 ADSL2+ modems to work with a pfSense VM Each modem is plugged into our DLINk DGS-1210 Switch (ports 1,2 & 3) Ports 1,2 &3 are on VLANS 101, 102 & 103 respectively. pfSense is driving them via PPPoE vlan interfaces vs 2.4.3.1 KVM 4 Cores One virtio nic...
  20. Netzwerk Probleme

    Hallo Community Ich habe ein kleines Problem mit meinem Proxmox Server. Auf dem Server selbst erhalte ich bei einem Netzwerk-Speed Test folgende Werte: Auf der VM erhalte ich aber folgende Werte: Server Konfiguration: VM Konfiguration: Auf der VM läuft Windows Server 2016. Ich habe die...

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