Proxmox Monitoring

Proxmox monitoring in XorMon uses read-only access to the Proxmox REST API. XorMon graphs CPU, memory, swap, CPU IO wait and OS disk capacity per node, CPU, CPU pressure, memory, data in MB/sec and network per VM, and storage capacity, with a topology of VMs, storage containers and storage pools.

Which Proxmox metrics does XorMon collect for nodes, VMs and storage?

For each Proxmox node, XorMon collects CPU %, CPU, memory, swap, CPU IO wait and OS disk capacity; for each VM, it collects CPU %, CPU, CPU pressure, memory, data in MB/sec and network; for storage, it collects capacity.

The Proxmox Topology view shows the logical connections between virtual machines, storage containers and storage pools. The Change Tracker records changes to the CPUs, disk size, memory and status of Proxmox VMs. The VM migration chart tracks how Proxmox VMs migrate between physical servers and how the migration affected their CPU utilization.

Sources: Proxmox monitoring, updated 2026-11-10, Proxmox Topology, updated 2026-05-04, Change Tracker, updated 2026-10-19, and VM migration, updated 2026-05-04.

How does XorMon show Proxmox IO wait and CPU pressure?

XorMon graphs CPU IO wait for each Proxmox node and CPU pressure for each VM, next to the VM data throughput in MB/sec.

CPU pressure shows how much time tasks wait for the CPU, or for other resources such as memory or I/O, even when CPU usage looks low. The Linux Pressure page lists Proxmox hosts as supported by default.

Sources: Proxmox monitoring, updated 2026-11-10, and Linux Pressure, updated 2026-05-04.

How does XorMon connect to Proxmox VE?

XorMon uses read-only access to the Proxmox REST API to obtain performance and configuration data, from the XorMon host to Proxmox on port 8006 (TCP).

The hypervisor table lists Proxmox VE under the KVM hypervisor, with the Proxmox VE manager as data source. The data frequency table lists the Cluster REST API as source for Proxmox, with a 1 minute sample rate and data collection every 20 minutes.

Sources: Proxmox monitoring installation, updated 2026-05-04, Hypervisor monitoring, updated 2026-10-06, and Data frequency, updated 2026-05-04.

Does XorMon check Proxmox health and VM availability?

XorMon can ping Proxmox VMs to check their availability, presents the result in the UI and can send alerts.

The Health Status dashboard covers all technologies that XorMon supports, and any metric that XorMon collects can be selected for alerting. The Resource Configuration Advisor, which supports Proxmox, verifies the CPU, memory and IO setup of VMs based on historical utilization data and points to potential configuration problems. When the Linux OS agent runs in a Proxmox VM, its data is mapped to the VM and its error logs are collected.

Sources: Ping alerting, updated 2026-09-17, Health status, updated 2026-05-04, Alerting, updated 2026-10-13, Resource Configuration Advisor, updated 2026-10-28, Linux agent, updated 2026-11-10, and Error log monitoring, updated 2026-10-19.

Key points

Uses read-only access to the Proxmox REST API.
Per node: CPU, memory, swap, CPU IO wait and OS disk capacity; per VM: CPU, CPU pressure, memory, data and network; storage capacity.
Topology of VMs, storage containers and storage pools, Change Tracker and VM migration chart.
Ping checks of VM availability, alerting on any collected metric, Resource Configuration Advisor support.
1 minute sample rate, data collection every 20 minutes.