Proxmox VE Centre
Proxmox VE Center
Guided diagnostics, CLI commands and practical guidance for QEMU, LXC, cluster, Corosync, quorum, Ceph, ZFS, storage, backups, migration and networking.
System
Proxmox VE version
pveversion -v
System
Services systemd
systemctl --failed
Cluster
Cluster status
pvecm status
Cluster
List nodes
pvecm nodes
Cluster
Corosync status
corosync-cfgtool -s
Cluster
Quorum status
corosync-quorumtool -s
VM
List QEMU VMs
qm list
VM
VM configuration
qm config <VMID>
VM
VM status
qm status <VMID>
LXC
List containers
pct list
LXC
Container configuration
pct config <CTID>
Storage
Storage status
pvesm status
Storage
Filesystem usage
df -h
Storage
LVM thin Data% / Meta%
lvs -a -o +data_percent,metadata_percent
ZFS
ZFS status
zpool status -v
ZFS
ZFS datasets
zfs list -o name,used,avail,refer,mountpoint
Ceph
Ceph health
ceph -s
Ceph
Detailed Ceph health
ceph health detail
Ceph
OSD tree
ceph osd tree
Networking
Interfaces
ip -br addr
Networking
Bridges and VLANs
bridge vlan show
Networking
Routes
ip route
Backup
Recent cluster tasks
pvesh get /cluster/tasks --limit 20
Logs
pveproxy logs
journalctl -u pveproxy -n 100 --no-pager
Logs
pvedaemon logs
journalctl -u pvedaemon -n 100 --no-pager
Logs
Corosync logs
journalctl -u corosync -n 150 --no-pager
journalctl command builder
Build a log collection command for a specific Proxmox service.
tcpdump packet capture
Quick cluster collection
Generate read-only commands for an initial PVE / Corosync investigation.
1
Quorum first
In a cluster, check quorum and Corosync before making changes to VMs.
2
Check storage before the VM
A failing VM may depend on storage that is inaccessible or full.
3
Handle locks with care
Remove a lock only after confirming that the task which created it has finished.
4
Ceph: health detail
Do not attempt to fix HEALTH_ERR blindly: identify the affected OSD, PG or MON first.
5
Out-of-band console
Arrange IPMI/iLO/iDRAC access before changing networking remotely.
6
Verify with a restore
Verify a PVE/PBS backup with a restore test.
Important: Adapt these commands to your environment. Quorum, Ceph, storage and lock removal operations require careful impact assessment.