Proxmox VE System Administrator Cheatsheet (TL;DR)
Node Stats & Health
- Cluster Status:
pvecm status(Check quorum details and node math) - Cluster Members:
pvecm nodes - Resource Usage:
pvesh get /nodes/{nodename}/status - Storage Status:
pvesm status - System Logs:
journalctl -f -u pvedaemon -u pveproxy
Corosync & Quorum Essentials
- Check Quorum Status:
corosync-cmapctl | grep quorum(Verifies node voting power) - Detailed Ring Status:
corosync-cfgtool -s(Checks if communication rings/links are healthy) - Emergency Vote Override:
pvecm expected 1(Forces quorum to 1 to bypass multi-node requirements) - Reload Corosync Config:
corosync-cfgtool -R(Applies changes tocorosync.confwithout a reboot) - View Ring Members:
corosync-cmapctl runtime.totem.pg.mrp.srp.members
VM Basics (QEMU/KVM)
- List VMs:
qm list - Start VM:
qm start <vmid> - Shutdown VM:
qm shutdown <vmid> - Force Stop VM:
qm stop <vmid> - VM Configuration:
qm config <vmid> - Migrate VM:
qm migrate <vmid> <target-node> --online
Container Basics (LXC)
- List Containers:
pct list - Start Container:
pct start <vmid> - Shutdown Container:
pct shutdown <vmid> - Force Stop Container:
pct stop <vmid> - Enter CT Shell:
pct enter <vmid> - CT Configuration:
pct config <vmid>
DRBD & LINBIT SDS
- DRBD Status Overview:
drbdadm status(Check replication state and connection) - Detailed Core Stats:
drbdsetup status --verbose --statistics - Linstor Cluster Status:
linstor node list - Linstor Storage Pools:
linstor storage-pool list - Linstor Resource List:
linstor resource list - Force DRBD Primary:
drbdadm primary <resource> --force
