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Questions tagged [proxmox]

Proxmox Virtual Environment (PVE for short) is an Open Source Server Virtualization Platform, based on Debian, KVM and (LXC for v4 and above, OpenVZ for versions <4.0)

Proxmox VE is a complete open source virtualization management solution for servers. It is based on KVM virtualization and container-based virtualization and manages virtual machines, storage, virtualized networks, and HA Clustering.

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GFS2 over DRBD automount

I have 2 nodes Proxmox cluster. For KVM images I use DRBD device with GFS2 on it. Everything works fine except GFS2 automounting after server restart. I put in fstab: /dev/drbd0 /cluster/drbd0 gfs2 rw,noatime,nodiratime,_netdev 0 0 Manually it…
Anton
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LVM DRBD Shared between nodes proxmox

Context : I have proxmox cluster with the volume group shared with drbd for the VM - KVM. I have a problem with drbd. Indeed, when a node disconnect, the associate link between the differents nodes is broken. Impacts are : Status drbd nodes : cs:…
cyt
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Proxmox VE cluster not working

I have been using a Proxmox VE 2.0 cluster (2 servers) for months. Today, I had the "bright idea" to install a GUI on one of the servers. I used tasksel, and selected the graphical desktop environment (Gnome). When I rebooted the server, neither of…
JJJollyjim
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Debian Linux server locked - no clues in the logs?

I had a server lock up this morning. Here is a screen shot from the console: None of the messages from the screen shot mean anything to me. I have a feeling that the important stuff probably scrolled off the console. I can not find any of the…
Curtis
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Poor Write Performance in VM inside Proxmox PVE 2.0

I am running a PVE 2.0 on a decent Hardware (2 SATA HDDs as RAID1, 12GB RAM, i7 CPU) but the I/O Performance is very poor inside the VM (Ubuntu 11.10 Server). The very same VM was copied to another Server running simply Ubuntu Server with KVM and…
sorsenne
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iptables 1:1 NAT with reflection second public IP to local IP

I would like to setup a 1:1 NAT + reflection with iptables, so really forward everything which arrives on that one public IP to my internal VM. Background Info: I have a dedicated server running proxmox with a NAT based network configuration (see…
Leo
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How to route host traffic over lxc?

Some info updated: Last login: Wed Aug 31 18:10:24 2022 root@pve:~# ip route default via 192.168.132.1 dev vmbr0 proto kernel onlink 192.168.132.0/24 dev vmbr0 proto kernel scope link src 192.168.132.4 root@pve:~# root@pve:~# ping 10.0.0.26 PING…
Ken Kin
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ZFS and SAN: issue with data scrubbing

Working as scientists in a corporate environment, we are provided with storage resources from a SAN within an Ubuntu 20.04 virtual machine (Proxmox). The SAN controller is passed directly to the VM (PCIe passthrough). The SAN itself uses hardware…
Benoit
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Proxmox on Ceph performance & stability issues / Configuration doubts

We have just installed a cluster of 6 Proxmox servers, using 3 nodes as Ceph storage, and 3 nodes as compute nodes. We are experiencing strange and critical issues with the performances and stability of our cluster. VMs and Proxmox web access tends…
Danyright
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rudder-relayd.service: Failed at step NAMESPACE - Permission denied

I'm trying to use rudder-server on a Debian buster at work, the webapp works fine but one of the rudder services does'nt work and I can't receive reports from other nodes : ● rudder-relayd.service - Rudder Relay Daemon Loaded: loaded…
Matias V
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How to make a Proxmox VM autostart with the qm command line tool?

How do I make a VM boot on startup using just the qm command line tool? I don't want to log in to the GUI, just to be able to set autoboot using SSH.
GDR
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vmalloc allocation failure when scaling LXC containers past 1350 on Proxmox 6.2

I have a server of the following spec: Dual AMD EPYC 7742, 1TB RAM, 8TB SWAP (Round-robin 8xNVME array), 144TB SSD Storage (72 drives over 10 zpools) uname -a Linux host 5.4.44-1-pve #1 SMP PVE 5.4.44-1 (Fri, 12 Jun 2020 08:18:46 +0200) x86_64…
joinsplit
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High CPU usage on WIndows guest KVM machine

So I am noticing my windows KVM guests (managed by proxmox) are showing extremely high CPU usage when doing really simple things like watching a video on youtube. For example a 4 core KVM instance will go up to about 75% CPU usage when watching a…
ktb92677
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sys-unconfig equivalent for Fedora 30

I'm trying to prepare a Fedora 30 KVM virtual machine template on Proxmox. I wanted to use the sys-unconfig command but it was removed in initscripts 9.81-1 virt-sysprep failed when I ran it from Proxmox host. What is the alternative for Fedora 30?
jwalker
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Proxmox Ceph OSD Partition Created With Only 10GB

How do you define the Ceph OSD Disk Partition Size? It always creates with only 10 GB usable space. Disk size = 3.9 TB Partition size = 3.7 TB Using ceph-disk prepare and ceph-disk activate (See below) OSD created but only with 10 GB, not 3.7…
rwcommand
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