virtio

  1. T

    4x1Gb LACP slow VM bandwidth

    Hey everyone, I'm currently building a "proof-of-concept" for work using Proxmox. I have a 4x1Gb LACP config (see below), but I get slow performance from my VMs. I'm using a 400MBps NAS storage that works perfectly when a 10Gb non-vm client is tested. On Proxmox I have 3, Win 2012 r2 VM's with...
  2. G

    virtio disk driver windows2016 rate limited ?

    Hi Folks, Just migrated ceph totally to bluestore a test with windows2016 Server has good results, but i think limiting component is virtio driver! see also https://forum.proxmox.com/threads/virtio-ethernet-driver-speed-10gbite.35881/ concering Ethernet speed ... I see no "tunables" to...
  3. A

    > 3000 mSec Ping and packet drops with VirtIO under load

    I'm running PVE 5.0-30 with two KVM machines with Windows 2016 Servers installed. I did everything like computerized William explained in this video https://www.proxmox.com/de/training/video-tutorials/item/install-windows-2016-server-on-proxmox-ve. So I use ZFS and VirtIO for storage (SCSI) and...
  4. C

    bad network performance with virtio driver Windows 2016

    I'm playing around with proxmox in my lab. I migrated a Windows server 2016 from vmware to proxmox. During migration I removed all VMWare drivers and installed all virtual drivers from fedorapeople.org. Everything worked but then I noticed a strange behavior with the virtio network driver (tried...
  5. A

    VMs configuration and discard option in LVM-thin storage

    Hi Guys, on my Proxmox 5 I have to create several Windows 7/10 Virtual Machines. My server has an hardware RAID Controller Card (1 GB RAM with battery) and 4 SATA Disks attached to it. I would create the VMs with the following parameters: -Hard Disk Bus/Device: SCSI -target storage: LVM-thin...
  6. H

    Network Card : VirtIO Bug?

    Hello there, I have a small problem with DHCP Server + Client in Virtual Machines using VirtIO network device. dhcpd: 5 bad udp checksum in 5 packets I alread read some other forums and mailing list for this problem and it looks like the VirtIO Network Device is not generating correct...
  7. S

    Connection errors/timeouts between 2 2012R2 guests on same bridge

    Hi All I have 2 Windows server 2012 R2 on the same host connected on an internal bridge network. They access internet connectivity via an Untangle Firewall with an interface bridged on an external adapter and another on the internal bridge. The Internal Bridge has no physical adaptor assigned...
  8. K

    How to clone a VM (virtio drive) from CLI

    Hello, I am happily using LVM over iSCSI (file extents), however I have the need of creating a full clone of the drive (virtio0) over a NFS share. I can do this from the GUI with "move disk" and selecting the NFS share, w/out checking "delete source". This does create a .raw file which is a...
  9. H

    Insane write speeds on Ceph/krbd windows client with virtio.

    I've been running some benchmarks on Windows whose virtio disks are on Ceph. All is well. At one point I enabled the "krbd" option because I wanted to use the rbd pool for containers as well. Out of curiosity I reran the benchmarks on windows and to my surprise the write speeds are simply out of...
  10. S

    Debian guest, virtio "9p: no channels available"

    Hello, my goal is to share a folder of a filesystem from the Proxmox-host with an Debian-based 'OVM' VM. I used this this qemu manual and did the folowing: in /etc/pve/qemu-server/102.conf [...] <filesystem type='mount' accessmode='passthrough'> <source dir='/mnt/data/media/foo/'/>...
  11. T

    Newb Needs (Paid) Help

    I have a proxmox 3.4 server that was setup for me with a window VM and a Container with VirtualMin on it. Now, I have a new server and I want to do the same but it's all over my head. Looking to pay someone for the help. Here is an example of what I need:
  12. C

    Disk performance crippled using virtio disk

    I set up a VM for 2k12r2. The disk is a sparse raw file, converted from a .vhdx snapshot taken with disk2vhd. The configuration of the system, with the disk connected to ide0 was as follows: agent: 1 balloon: 2048 boot: cd bootdisk: ide0 cores: 2 hotplug: usb ide0...
  13. J

    Windows 7 64 bits signed VirtIO drivers

    Hello again! as im going to build a proxmox ve 4.2 for a productive enviroment in a couple of days and started doing tests in order to smooth the transition from virtualbox in a old cpu, the first thing i need running in the new computer is a windows 64bits VM for a little MS SQL server...
  14. N

    Kann kein Windows Server 2008 R2 installieren.

    Hallo liebe Community, Ich habe die letzten Tage immer wieder versucht, WS2008R2 zu installieren. Ich habe zwei Versionen von dem Installationsdatenträger. Bei der ersten bleibt er bei "Starting Windows" hängen. Bei der anderen kann ich den Treiber von der "Virtio-win-0.1.102.iso" hinzufügen im...
  15. U

    [SOLVED] Very poor pfsense performance with PCI passthrough

    Okay, so I have been able to pass-through my intel nic card to every single guest linux operating system just fine, and performance has been great. I can install/boot pfsense perfectly fine without having my nic passed through to it, but right when I pass through the ethernet card, the...
  16. grin

    VM guest will not boot after changing drive type from IDE to VIRTIO

    There's a thread in the old readonly forum parts: https://forum.proxmox.com/threads/kvm-guest-will-not-boot-after-changing-drive-type-from-ide-to-virtio.4787/ This doesn't seem to be fixed. I have created a VM, added a sata disk, booted, stopped, added a virtio disk, deactivated the sata disk...
  17. A

    Poor virtio network performance on FreeBSD guests

    Hi all! I am using the latest Proxmox 4.1 with all updates installed. I have several VM's with FreeBSD guests and 1 VM with Ubuntu 14 (all KVM). Host system file download speed: 60 MBps. FreeBSD guest download speed: 2 MBps on virtio network with TSO enabled, 5-9 MBps with TSO disabled; 12 MBps...
  18. O

    Can't find where to configure video memory for qxl driver

    hello evreyone, i am using proxmox 4.1 and spice to connect windows 7 machine, and i need to increase the video memory from 16 mb to at least 64 mb(due low video performance)where can i edit that setting? Thanks.
  19. A

    Errors in ethX with Intel E1000

    Hi, From last update we detected some problems with Intel E1000 network configuration. If we use it, errors appear on network info: ifconfig eth eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.3.119 netmask 255.255.255.0 broadcast 192.168.3.255 ether...
  20. G

    Veth openvz vs virtio kvm. Which is a faster one?

    Hello! I have to implement a very hight load network router on a virtual machine and i have some doubts about which is a VM i need to use. I'd like to use openvz, but i don't know who the best in network perfomance kvm virtio or veth openvz? Can you advice me?

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