1. W

    Bad hardware raid perfomance on AVAGO MegaRAID SAS 9480-8i8e

    Hi everybody, I am a new proxmox user! I have strange (bad) perfomance results between native fresh windows and VM on proxmox. my config: root@proxmox:~# qm config 100 agent: 1 boot: order=sata0;ide2;net0 cores: 8 cpu: x86-64-v2-AES ide2...
  2. D

    Proxmox Backup Server

    Hello, I am using Proxmox VE with Proxmox Backup Server My backup process is built on an internal 10 gigabit network, I also use ZFS for Proxmox Backup Server with 32GB memory allocation for ARC Storage capacity 47 TB of which 40TB is occupied RAM 64GB CPU: Intel(R) Xeon(R) CPU E5-2620 v4 @...
  3. S

    Beginner Seeking Advice: Optimizing NVMe Performance in Proxmox for VMs

    Hello Proxmox community, I hope you all are doing well. I'm writing to seek your advice and guidance on an issue that's been giving me a bit of a challenge. I've just started exploring Proxmox, and while it's been an exciting journey so far, I could really use your collective wisdom on a...
  4. K

    [TUTORIAL] Hey Proxmox & Community - Let's talk about resources isolation

    This post is going to be pretty long too long to fit in a single post, but it represents a summary and lessons learned over ~3 weeks of experiments. This post is a half-tutorial and half-RFC so maybe PVE can be improved, as well as a half-tutorial how to actually achieve good results. This...
  5. S

    Ceph performance advices

    Hi, We are on the point of changing our current IT infrastructure with a small Proxmox cluster of 5 nodes : Dell Precision R7920 Xeon Gold 5118 or Xeon Silver 4112 128 GB ECC RAM Data/VM disks (Ceph) on 5x3 16 TB Exos HDD. System/ISO disk on NVMe SSD via a PCIe adapter. Currently these are...
  6. B

    Schlechte Performance von SSD Speichern

    Hallo zusammen, mir ist aufgefallen das die Performance der Datenspeicher weit unter dem ist was ich erwarten würde. Ich habe 2 Datenspeicher Eingerichtet: NVME SSD Pool (ZFS Mirror) : 1x SAMSUNG MZVLQ1T0HALB-00000 1x KINGSTON SNV2S1000G SATA SSD Pool (Ext4 formatiert) : Verbatim Vi550 S3...
  7. G

    What can my NUC10i5FNK handle!?

    Dear Proxmox users, Let me briefly explain my situation first. At the moment I have 2 different servers. Intel NUC10i5FNK 32GB RAM / 1TB NVME DIY server Intel XEON 2146G - 64GB RAM / 1TB NVME / 8 WD-RED 4TB. Both are now running Proxmox 7.3-3 The Intel NUC: LXC Container Domoticz (DzVents...
  8. M

    Network packet loss in high traffic VMs

    Situation: we're running KVM VMs based on Debian/bullseye on Proxmox/PVE with 10GB NICs, but experience packet loss with the virtio-net interfaces under high network traffic situations (RTP/UDP). This underlying problem also exists on VMware clusters. VMware provides a solution for that: one...
  9. S

    *.pxar vs *.fidx

    There is a large (3tb) file storage of mixed content on a non-virtual host (text files, archives, videos, etc.). From the documentation it is clear that I can backup as a .pxar or completely as an .img device (after starting it in the console it says that .img.fidx is being created) But from the...
  10. D

    Mariadb lxc perfomance

    Hello! I have incomprehensible results of mariadb benchmark in proxmox. I tested it with sysbench oltp read only benckmark and got this results: without virtualization 11195.22 transactions per sec in kvm with scsi disk 8358.25 transactions per sec and in lxc 7362.25 transactions per sec Why...
  11. I

    ceph performance estimation calculation?

    we are planning to add a new ceph pull that will be consists of 60 HDDS across 5 servers with 40GB duel network. (one for ceph sync, and one for clients) in future all the hdd slots will be populated how far this assumption from the reality: HDD have a read speed of 100MBs the data is...
  12. B

    NUMA in Proxmox

    Hi everyone, I have a host with 2 sockets (8 pcores/each, 16 cores/each with HT) with Proxmox 5.4.13 installed. Each Processor has 32 GB of RAM memory. I have "NUMA" enabled in all VMs. When I run numastat, the results are not the expected ones. I get too many numa_miss events: root@pve1:~#...
  13. A

    zfs performance

    Hi. i have server with hard-raid. The raid has 8 ssd. I made two logical disk. In first disk i use ext4, where is OS-system. On second disk i had test with ext4 and zfs. When use ext4 i have perfomance 1.3 GB/s. When use zfs and compresion=off then i have 540MB/s. When use zfs and...
  14. K

    [SOLVED] Node configuration

    Hi all. I wanna ask a few questions: 1. if proxmox nodes in HA cluster must have the same specs (ram, cores). Ive read the documentation for HA but im not sure if it is implied that nodes must have the same specs. i will create a test cluster anyways this week, but would save me time if i have...
  15. K

    Disabling cephx auth

    Hello. Brand new here, did a bit of research on the forum before asking but want to double check before doing something bad 8-) I've setup a brand new cluster of 5 servers. Each server has two E5-2697 v3, 256GB of RAM, eight 2TB Hynix SSD as OSD and a pair of 80GB SSD for boot. It also has six...
  16. H

    Proxmox 5.4-6 VMs very slow

    Hello, I have a slow problem with my VMs (linux / windows) under proxmox, despite the server is efficient server (12 CPU, 64 GB RAM), I gave the machines a lot RAM and CPU but still the slowness exists, as well as the internet connection is perfect Regards, Thank you,
  17. J

    Virtual Network Card Performance

    This is probably common knowledge to many people, but I'm trying to find out what the differences are with the performance of virtual network cards Proxmox supports. E1000, VirtIO, RTL8139 and vmxnet3 I have a mix of windows & linux clients, and currently using a mix of all these, except for...
  18. S

    ZFS Raid 10 vs SW Raid 10

    Hey guys, im using Proxmox a really long time now, but im still getting confused when "zfs" joins the club. I got a few questions, which i hope some of you can answer. I moved from unRAID in home server use away, because of lesser read and write IO performance, because i plan to nested...
  19. M

    Proxmox pveperf ext DNS performance

    Running pveperf I get I get DNS EXT 181 ms. However doing ping to external DNS gives 2.40 ms. Any idea where comes the difference ?
  20. D

    High I/O delay and CPU stuck

    Hi. I have an entry level server (Dell PowerEdge T30, 16 Gb RAM, 2 x 1 Tb SATA hard drives) on which I installed Proxmox 5.1 configured with a ZFS RAID1 pool. I know this is a slow system, but after creating 3 virtual machines the server is terribly slow: continuous high I/O delay and CPU...


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