http://192.168.180.206:8001/ 2026-05-14T14:41:10+00:00 http://192.168.180.206:8001/ http://192.168.180.206:8001/_media/wiki:dokuwiki.svg text/html 2024-10-29T17:28:47+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:backup?rev=1730222927&do=diff Backup VM Backup Fleecing <https://pve.proxmox.com/wiki/Backup_and_Restore> VM Backup Fleecing On a storage that’s not thinly provisioned, e.g. LVM or ZFS without the sparse option, the full size of the original disk needs to be reserved for the fleecing image up-front. On a thinly provisioned storage, the fleecing image can grow to the same size as the original image only if the guest re-writes a whole disk while the backup is busy with another disk. text/html 2022-09-26T19:40:41+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ceph?rev=1664221241&do=diff CEPH * OSD - (Object Storage Device) - Storage on a physical device or logical unit (LUN). Typically, data on an OSD is configured as a btrfs file system to take advantage of its snapshot features. However, other file systems such as XFS can also be used. text/html 2020-04-22T08:07:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:cli?rev=1587542837&do=diff Commandline * pvecm - Proxmox VE Cluster Manager * pvesm - Proxmox VE Storage Manager text/html 2020-09-16T05:52:45+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:cluster?rev=1600235565&do=diff Cluster Different nodes configuration Cluster is using ONE shared content of /etc/pve. Content of this directory is synchronized on all cluster nodes. IMPACT: * storage configuration is one for whole cluster. To create local node storage, storage should be limited only own node. text/html 2024-02-12T07:26:31+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:disaster_recovery?rev=1707722791&do=diff Disaster recovery replace NVM device Only 1 NVM slot available, so idea is to copy nvm to hdd and then restore it on new nvm device. Stop CEPH: systemctl stop ceph.target systemctl stop ceph-osd.target systemctl stop ceph-mgr.target systemctl stop ceph-mon.target systemctl stop ceph-mds.target systemctl stop ceph-crash.service text/html 2020-12-06T20:01:16+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:docker?rev=1607284876&do=diff Dockers under Proxmox Possible solution: * Docker on PVE host (influence host resoruces, out of control, low security) * Docker in LXC unprivileged container (compatibility problem, permissions) * Docker in LXC privileged container (better, but still risk for security) text/html 2025-07-14T06:29:10+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:firewall?rev=1752474550&do=diff PVE Firewall Important: If you enable the firewall, traffic to all hosts is blocked by default. Only exceptions is WebGUI(8006) and ssh(22) from your local network. To use firewall: * enable it at Datacenter level (note default input policy is REJECT!) text/html 2020-04-24T13:13:40+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:ha?rev=1587734020&do=diff High Availability Needs minimum 3 nodes. Problem with one node has to be confirmed by 2 other nodes (to have quorum). cheap 3rd node It is possible to add any 3rd cheap node to provide a “Quorum Device” (QDevice) for other nodes (i.e. raspberry PI based). text/html 2021-05-25T15:35:47+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:influx?rev=1621956947&do=diff Influxdb2 and Grafana Proxmox VE sends the data over UDP, so the influxdb server has to be configured for this. influxdb2 Proxmox is using UDP (Influx V1 compatible) Install Telegraf Socket listener plugin <https://hub.docker.com/_/telegraf> echo "my_measurement,my_tag_key=my_tag_value value=1" | nc -u -4 -w 1 docker-host 3522 text/html 2024-03-26T18:39:54+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:issues?rev=1711478394&do=diff Issues run replication first TASK ERROR: snapshot 'up' needed by replication job '122-2' - run replication first Job was previously (months ago) removed but stuck in Removal Scheduled state. It looks like jobs must be enabled to perform delete remote snapshots. Snapshots was deleted months ago, so only text/html 2022-12-31T16:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:kvm?rev=1672503948&do=diff KVM CPU model QEMU / KVM CPU model configuration AES Enable AES in CPU flags. Default KVM64 CPU doesn't expose AES flag. Simple openssl benchmark: openssl speed -evp aes-128-cbc aes-256-cbc aes-256-ecb # Without AES type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes aes-256 cbc 185216.65k 190818.37k 191588.35k 193247.23k 193489.58k 193353.05k aes-128-cbc 220375.57k 245515.09k 249103.70k 254411.43k 255770.62k 255393.79k … text/html 2025-08-23T06:31:43+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:lxc_vs_vm?rev=1755930703&do=diff LXC vx VM Nowadays LXC unprivileged can handle docker daemon smoothly. It is best option for memory constrained hosts. LXC Pros: * light for host * no VM overhead (we are using it as Gitlab runners with docker executors) * device pass through (possible to run i.e. Jellyfin or Frigate with Coral accelerator or pass GPU to offload decoding). Setup is a bit complicated but works. text/html 2021-02-22T07:18:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:lxc?rev=1613978297&do=diff LXC rename CT pct set <VMID> --hostname <newname> update CT templates # pveam - Proxmox VE Appliance Manager pveam update Shrink container disc It is not supported. Command pct resize <VMID> rootfs <newsize> cannot be used. Workaround 1: text/html 2022-10-04T06:17:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:network?rev=1664864237&do=diff Network planning * CEPH Network Configuration Reference * Ceph network configuration * <https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/1.2.3/html/ceph_configuration_guide/network-configuration-reference> * <https://ceph-users.ceph.narkive.com/wTDiWx2w/have-2-different-public-networks> Default IP for each node is defined in: /etc/pve/.members Preffered network layout * WAN interface (to give VMs access to Internet) * 10GBE for CEPH private * 10GBE for Proxmo… text/html 2020-09-16T05:39:41+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:on_debian?rev=1600234781&do=diff On existing Debian Install Proxmox on ready Debian system. Benefits: * unusual disk setup (i.e. not using ZFS for raid, only generic MD or LVM raid) * for lazy people: running system with remote access only Setup repositories Package Repositories Detailed step-by-step instuciton text/html 2025-04-02T19:02:50+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:pbs?rev=1743620570&do=diff Proxmox Backup Server aka: PBS change owner #!/bin/bash -eux DSTDIR="${1}" OWNER="backup@pbs" find "${1}" -name "owner" -exec sed -i "s/^.*\$/${OWNER}/g" {} \; Internet access Only https on port 8007 is needed. Use VPN to secure connection between peers. text/html 2024-12-20T19:55:30+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:sdn?rev=1734724530&do=diff SDN Software Defined Network * Zone - upper level: * VMs are assigned to zones. * user permissions are applied to zones * zones are containers of VNets * zone types: * Simple a simple bridge on single Proxmox node - no communication across the cluster. text/html 2024-10-30T09:41:59+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:shutdown?rev=1730281319&do=diff Shutdown Cluster shutdown Official info: * ceph server: document full cluster shutdown * [pve-devel] [PATCH docs v3] pveceph: document cluster shutdown previous/own solution Stop all VMs/CTs. Disable CEPH rebalance: ceph osd set noout # after power restore: ceph osd unset noout Stop HA services: systemctl stop pve-ha-crm.service systemctl stop and pve-ha-lrm.service text/html 2020-04-26T14:57:27+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:storage?rev=1587913047&do=diff Storage Terms * shared * do not set local storage as shared, because content on each node is different * One major benefit of storing VMs on shared storage is the ability to live-migrate running machines without any downtime, as all nodes in the cluster have direct access to VM disk images. There is no need to copy VM image data, so live migration is very fast in that case. text/html 2021-01-03T12:35:18+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:use_host_monitor_and_keyboard?rev=1609677318&do=diff Use host monitor and keyboard to work with guest. Idea is to get all benefits of Proxmox VE and also use Proxmox host machine as terminal to one of guest systems. <https://www.reddit.com/r/Proxmox/comments/a968lh/gpu_passthrough_to_use_a_keyboard_monitor_and/> text/html 2023-12-13T13:54:22+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/vm:proxmox:zfs?rev=1702475662&do=diff Proxmox's ZFS Since fall 2015 the default compression algorithm in ZOL is LZ4 and since choosing compression=on means activate compression using default algorithm then your pools are using LZ4 -> <http://open-zfs.org/wiki/Performance_tuning#Compression> # Check if LZ4 is active zpool get feature@lz4_compress rpool