1. Azure optimization on proxmox

    Hi, I'm not sure this topic goes in this place but I'm sure it can be useful for sure. Some time ago I installed a virtual machine with azure with windows server 2019. Everything perfect, in fact I made a copy of that machine and imported it into my proxmox that I have for testing. I was...
  2. [SOLVED] Performance Optimierung / nicht die erwartete Leistung.

    Ich betreibe 2 Cluster, 1X tolles neues wo alles erwartungsgemäss funktioniert, aber einmal ein günstigeres Setup was in der VM aber eine meiner Meinung nach viel zu schlechte Performance abliefert. Einmal die eingesetzte Hardware und Config: Wir hatten das Synology NAS in Verdacht zur...
  3. Does using VIRTIO SINGLE improve backup speed?

    Hi, Just a quick question. Can the speed of snapshots be increased by using paravirtualized hardware? For instance, VIRTIO Single with io-tread performance is better than IDE drives.
  4. Firewall - Internet Speed

    Hey everyone, We have a 10G Internet connection but we are not even reaching 1GB Internet Speed to the firewall installed on proxmox. We have used the Intel1000 as nwetowrk card. Is it possible to get the full Internect connection speed to the firewall?
  5. UdoB

    How can I specifiy a nominal speed of a kvm virtio NIC?

    Good morning, while expanding monitoring of my PVE systems I am stumbling over a (for me) problematic detail: the reported speed of a virtual NIC is always "10", which means 10 MBit/s. Specifically the host tells me this for any VM: root@pm1:~# cat /sys/class/net/tap110i0/speed 10 Just for...
  6. [SOLVED] PBS benchmark tool - Good TLS speed in local but decreased TLS speed from remote

    Hi there, as the title suggested, I would like to troubleshooting my issue with you. I installed a Proxmox Backup Server on a dedicated hardware: If I run proxmox-backup-client benchmark --repository BackupPVE i have this result: Now, from my main Proxmox server I get this result using...
  7. Limit PBS backup bandwith speed

    Hello, Is there a way to limit the speed at which PBS backups our servers ? I'm asking because it takes all our NIC bandwith which make our VM pretty much unreachable during the backup schedule. I've tried to edit /etc/vzdump.conf but it seems to ignore it when using PBS. Thanks
  8. DynFi User

    PBS to backup CephFS

    I am getting back to these threads : https://forum.proxmox.com/threads/cephfs-content-backed-up-in-proxmox-backup-server.84681/ https://forum.proxmox.com/threads/backup-ceph-fs.85040/ Because none of them have really been answered correctly from my point of view. And none of them has been...
  9. Using proxmox-backup-client to backup 1.8 TB of nextcloud user's files - took 22h !

    Hello dear Proxmox, for our university's institute (law...) i had to build a new server infrastructure for VMs. Since we successfully use proxmox since a couple of years now, of course i built the new infrastructure with proxmox again: Our setup: 2 Proxmox VE nodes with local zfs (uses ssd for...
  10. Slow Internet Performance in the VM

    Hello, I have an internet connection speed problem in my VMs. The Proxmox server has an excellent connection. I installed Centos7 on the vm. Here are the speed test results of the Proxmox and a VM: Proxmox: root@ns5004254:~# ./speedtest-cli Retrieving speedtest.net configuration... Testing...
  11. Openvswitch performance

    Can you please tell me how much the bandwidth drops when switching from the classic network design in Proxmox to openvswitch?
  12. Low backup speed: Proxmox Backup to OMV NAS via NFS

    Hey everyone, I am new to the whole home server topic but I am somehow familiar with the basics I guess. So I am running the following setup: Latest Proxmox and OMV version on both systems. OMV Backup NAS Server: Raspberry Pi 4B + external Raid0 enclosure (2x 2 TB WD Red, no SMR drivex, = 4...
  13. Proxygen

    [SOLVED] Speedtest-cli: Upload Speed is Capped Because the Kernel Uses BBR

    BBR seems to be the reason for upload speeds limited to 4.17Mbps when using speedtest-cli on kernel >= 4.9. See https://github.com/sivel/speedtest-cli/issues/605 Until this is resolved, use iperf to test upload speeds. PS: This is not a tutorial, but it is surely not a question.
  14. Benchmark: ZFS vs mdraid + ext4 + qcow2

    After fighting with ZFS memory hunger, poor performance, and random reboots, I just have replaced it with mdraid (raid1), ext4, and simple qcow2 images for the VMs, stored in the ext4 file system. This setup should be the least efficient because of the multiple layers of abstraction (md and...
  15. Data replication : which Nics to choose

    Hi there, Consider a 3 node setup with each node having 2x 10GB & 6x 1GB Nic. Is it more interesting to speedup replication between the nodes using 10GB interconnects and have the VM's communicate on 1GB (scenario 1) or is it more interesting to speed up VM <—> desktop access (scenario 2) My...
  16. Disk slows down after resize (ceph)

    Hi all, I'm facing a strange problem. I'm using latest Proxmox with Ceph storage backend (SSD only), 10Gbit network, KVM virtualization, CentOS in guest. When I create a fresh VM with 10 GB attached Ceph storage (cache disabled, virtio drivers), I'm getting roughly these speeds in fio...
  17. Slow disk speed on Windows VM

    Hi, I installed a fresh Proxmox VE and tested the speed of the disk: root@pve:~# dd if=/dev/zero of=./test bs=1G count=1 1+0 records in 1+0 records out...
  18. [KNOWN ZFS PROBLEM] Freezing while high IO (only on host - not guest)

    EDIT: As I find out that high IO will only result in freezing while performed on host, not guests please skip to post #19 as there are new findings. I'm basically reposting issue that I have with backups to FreeNAS from this post...
  19. [SOLVED] ZFS zu langsam

    Guten Abend, ich sitze gerade vor "meinem" ersten Proxmox-Produktivserver und bin der Meinung, dass ZFS nicht in die Pötte kommt. Gerade getestet mit CrystalDiskmark sind es etwa 30 MB/s 4K QD32 Read. Ein paar Eckdaten zum Server und der Installation: CPU: Xeon E5-1620 RAM: 64GB, ZFS Max...
  20. TwiX

    [SOLVED] weird CPU speed

    Hi, I don't know why but CPU speed seems to be very low. On a fresh install of pve5 with 2 x Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz I have : root@dc-prox-06:~# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s)...


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