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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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OPNsense/pfsense on Proxmox with LACP, VLANs and Multi-WAN

I want to set up an OPNsense router (of pfsense if OPNsense sould not work as desired) on Proxmox. I have multiple WANs as well as multiple local VLANs. Since I have more VLANs than physical ports I obviously will have to use VLAN-trunking. And…
masgo
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Linux /proc/sys/vm/drop_caches in guest VMs

Question: Would it ever be a good idea to disable page cache inside guest VM's and instead rely on the ZFS ARC (and SSD based L2ARC) of the host? Context: I'm asking since I'm running a Proxmox cluster which is always showing around 90% use of RAM…
A. Nilsson
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Proxmox bridged TAP-to-TAP virtio performance slow

so a little info about my setup: Running Proxmox 5.3-11 with latest updates Running 2 Windows 2012 guests (we'll call them winhost1 and winhost2) with virtio NICs and latest spice-guest-tools (with the netsh modifications described here) I'm using…
maff1989
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Proxmox: how to access a ZFS volume directly through guest?

That may sound like a strange use case, but is there a way to access a ZFS volume directly through an LXC container or a Qemu VM with Proxmox? I'd like to have incremental backups pushed to my guest on my server from my computer. For this, I'd be…
Luka
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How can i recover deleted pve/data correctly

I accidentally deleted pve/data thin volume in proxmox. Very next second i realised this and i tried to recovering it as below lvremove /dev/pve/data ls -lrt /etc/lvm/archive head /etc/lvm/archive/pve_00059-189435924.vg vgcfgrestore pve --test -f…
Sandeep Verma
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What does iostat show a different utilization for the 'dm' device?

I installed an M.2 drive into a Proxmox host this morning and monitored the disks with iostat -x 1. Why is iostat showing dm-7 is at 98% utilization, while the M.2 LVM PV (nvme0n1p1) shows only 6.8? I would expect, since dm-7 is a symlink the the…
Server Fault
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Proxmox 5.2 Gemini Lake and IGD (graphics) pass through for Ubuntu 18

I’m trying to set up a fresh install of Proxmox 5.2 on Gemini Lake and I would like to configure a VM with IGD (graphics) passthrough for Ubuntu 18 Computer-based on ASRock J4105-ITX asrock.com/mb/Intel/J4105-ITX/ A standard install is working…
user3327321
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How to allow vpn clients to access lan servers

I need some help understanding how to allow the vpn clients to access servers that are on the "intranet". I have one dedicated/physical server at ovh(if that matters) with 4 additional ips. The OS installed is proxmox and I have two network devices…
screab
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RAID5 - ZFS vs LVM+mdadm on 3 SSDs for KVM/LXC server (proxmox)

I want to configure RAID for a KVM/LXC server (it's running proxmox as a hypervisor). This server is now running on 3 SSDs in this configuration: 10GB host root partition + Btrfs partition for some containers LVM-Thin (vg 0) LVM-Thin (vg 1) I…
Kristi
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Proxmox doesn't recongnize increased swap space

So I tried to increase the swap LV from 8GB to 16GB, but Proxmox web panel doesn't seem to see the change. The LVM increased the space, but Proxmox haven't changed it's panel. Originally lvdisplay gave this result: --- Logical volume --- LV Path …
JoakimE
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Disable thin provisioning (sparse files) in proxmox

I'm using Proxmox Virtual Environment to run few virtual machines. I use raw storage format and I need that the disk is fully pre allocated when created so it does not grow. The proxmox says that this is default behavior but I experience the…
Pavel Niedoba
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RAID 10 with SSDs on LSI 9260-8i has bad performance

I am trying to get a raid 10 running with LSI 9260-8i (IBM M5015) and 4 x Samsung 850 Pro 512GB SSDs. The problem is, that the resulting sequential write performance is really bad (< 100MB/s). With raid 0, it is > 800 MB/s. My system is a Dell…
DonCanalie
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mounting hard drive that is passed to VM

I'm running proxmox and I was previously passing a hard drive (ext4 data drive) as iSCSI to a linux VM. Everything was good. Then I decided to pass the PCI SATA controller to the VM instead of just the hard drive. Now I am unable to mount the drive.…
sdstack
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CephFS needed if you only need block storage?

I'm looking into building a CEPH cluster as a storage solution for our proxmox cluster. It's unclear to me if I need to set up a metadata server too, because this is needed for CephFS but I think CephFS is not used for RBD, correct?
Maarten Ureel
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Proxmox switched IP now cant edit vm definitions

I have Proxmox VE 5.1-35. Switched the IP address and now I cant seem to modify any the VM definitions: I get an error about permissions: I'm not much of a linux permissions debugger so I'm a bit stumped. Heres the ls of that directory: BTW,…
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