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ZSvirt or Proxmox VE?

Both run on KVM, both are open source, and both are free for production. They started from opposite ends. This page lays out what is the same, what differs, and which fits each scenario.

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ZSvirt
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Data Center：Singapore Data Center-1

Virtual Machine

Running0
Stopped0
Other0
0Total

Host

Connected0
Disconnected0
Other0
0Total
Welcome, admin
Platform Time
2026-07-08 14:43:40

CPU Utilization

0.00%
Total604.80 GHz

Memory Utilization

0.00%
Used997.72 GB
Total1.47 TB

Triggered Alarms in Recent 1 Week

0Emergent
0Major
0Info
Top 5 Alarm Resources
ResourceEmergentMajor
sg-billing-worker-020320
sg-auth-gateway-010316
sg-analytics-etl-030316
sg-reporting-node-010316
sg-prod-api-010316

Data Storage UtilizationAll

0.00%
Used25.96 TB
Total48.78 TB

Image Storage UtilizationAll

0.00%
Used6.33 TB
Total6.98 TB

Opposite starting points

Both ship a built-in web console, and any node can manage the cluster without a separate management appliance.

ZSvirt

Enterprise first, then open source

Derived from ZSphere, ZStack's commercial platform. A decade of enterprise production capability, released under GPL 3.0 for users worldwide.

Proxmox VE

Community and homelab first, then enterprise

Maintained by Proxmox Server Solutions. Steady iteration and a large community have carried it into enterprise use.

Dimension
ZSvirt
Proxmox VE
Foundation
KVM
KVM + LXC
Origin
ZStack's commercial ZSphere platform
Maintained by Proxmox Server Solutions
License
GPL 3.0
AGPL 3.0
Community edition
Full-featured, free to download and run in production, no license fees
Full-featured, free ISO download
Control plane
One control plane for multiple datacenters and clusters
Cluster membership via corosync; multi-cluster needs the separate PDM 1.1

The basics are free on both

If you need a few nodes, high availability, snapshots, backup, and a web UI, both deliver. The difference is how each packages real scenarios into product.

  • Virtualization

    ZSvirt
    KVM
    Proxmox VE
    KVM

  • High availability

    ZSvirt
    Built into community edition
    Proxmox VE
    PVE HA on corosync

  • Live migration

    ZSvirt
    Between nodes
    Proxmox VE
    Between nodes of the same architecture

  • Snapshots

    ZSvirt
    Supported
    Proxmox VE
    Supported

  • Backup

    ZSvirt
    Built in
    Proxmox VE
    vzdump and PBS

  • Web management

    ZSvirt
    Built in, any node manages the cluster
    Proxmox VE
    Built in, any node manages the cluster

  • Distributed storage

    ZSvirt
    Supported
    Proxmox VE
    Built-in Ceph

  • Templates & clones

    ZSvirt
    Supported
    Proxmox VE
    Supported

  • Automation

    ZSvirt
    API and CLI
    Proxmox VE
    API and CLI

Daily operations: where the difference is most visible

Based on official public material for ZSvirt/ZSphere and Proxmox VE, checked with item-by-item functional tests. The marker shows which side has the more direct path.

Operation
ZSvirt
Proxmox VE
ISO library
Platform-level store; upload once, every host can use it · More direct
Per-node local by default; re-upload per node without shared storage
OVF import
GUI wizard; name and network set in one flow · More direct
CLI (qm importovf); needs shell access and manual network/BIOS setup
OVA export
Native GUI export · More direct
No native OVA export
Template ↔ VM
Two-way; templates convert back to VMs · More direct
One-way in GUI; CLI qm set <vmid> --template 0 converts back
Running VM to template
Supported · More direct
Not supported; clone first, then convert the clone
Batch VMs from a template
Quantity field · More direct
One VM per clone
Recycle bin
VMs and detached data disks recoverable before permanent deletion · More direct
No recycle bin; detached disks become Unused Disk and can be reattached
Set IP at creation
DHCP or static IP in the wizard · More direct
Set inside the guest, or via cloud-init images
Change IP while running
GUI action, no guest login · More direct
Inside the guest only; cloud-init re-push usually needs a reboot
Security group at creation
Bind while creating the VM · More direct
Create the VM first, then bind
vNUMA
Guided smart binding, topology view, migration safety checks · More direct
A single NUMA checkbox
Failure policy
Configurable, e.g. restart on kernel panic · More direct
None; a hung VM may still show as running
Disk expansion Even
Online, no downtime
Online, no downtime
Detach disk Even
While the VM runs
While the VM runs
Hibernate
Not supported
Supported (qm suspend --todisk) · More direct
VM views
Host view, group view
Server, folder, pool, and tag views · More direct

Two things worth noting

ZSvirtSeveral ZSvirt advantages are about not needing a command line: OVA export, OVF import, changing IPs online, batch deployment from templates, and the guided vNUMA flow. On PVE these take CLI work, manual configuration, or third-party tools.

Proxmox VEPVE supports VM hibernation and offers more view dimensions; ZSvirt has no hibernation today.

Virtual machinevm-web-01RunningTemplatetpl-web-baseqcow2 · 40 GiBCreate templateConvert to VMBatch create from templateQuantity4vm-web-02vm-web-03vm-web-04vm-web-05Created 4/4
Feature illustration

Scale and scheduling: the biggest design difference

This is the part that matters most when choosing.

ZSvirt

ZSvirt: a layered control plane

Management and compute roles are separated, managing datacenters, clusters, and hosts in layers. One control plane is designed for 10,000+ hosts. That is cross-cluster scale, a different dimension from PVE's practical single-cluster size.

Proxmox VE

PVE: a corosync cluster

The official docs state there is no hard node limit, but corosync is latency-sensitive. In practice clusters usually stay under 20 nodes on a dedicated, isolated corosync network. Beyond that, the norm is several smaller clusters aggregated with Proxmox Datacenter Manager, whose enterprise repository needs a Basic subscription or higher.

Scheduling: ZSvirt DRS vs PVE CRS

In Dynamic mode, the cluster resource scheduler (CRS) in PVE 9.2 balances on live load, the same idea as ZSvirt DRS. Balancing is optional, though, Dynamic mode only covers HA-managed VMs, and the default mode still counts VMs. ZSvirt adds scheduling groups, HA policies, and startup policies for different scenarios.

DRS load balancingAutohost-01CPU 86%vm-101vm-102vm-103vm-104vm-105host-02CPU 54%vm-201vm-202vm-203host-03CPU 22%vm-301vm-302vm-105Suggested move
Feature illustration
Scheduling
ZSvirt DRS
PVE CRS
Modes
Automatic or manual load balancing
Basic (default), Static Load, Dynamic Load
Decision basis
Live CPU and memory thresholds
Basic counts VMs; Dynamic uses live usage
Tunables
Configurable triggers with recommendation history
Imbalance threshold %, hold duration, minimum improvement %
Coverage
All VMs in the cluster
Dynamic mode covers HA-managed VMs; balancing is optional

VMware migration: how much is automatic, how much is manual

Both offer a way out of VMware. What matters most is not the cutover but mapping hidden dependencies first: backup scripts, monitoring agents, automation calling the vSphere API, VMware Tools removal, and driver installation.

ZSvirt · ZMigrate

  • Agentless, covering online migration and offline import, each with a documented workflow
  • Automated migration and cutover; the task list shows sync progress for every VM
  • Offline import has no scale limit; online migration does, so large estates usually migrate in batches
Read the ZMigrate workflow

Proxmox VE · built-in ESXi import (since 8.2)

  • Tested against ESXi 6.5 to 8.0; the source VM must be powered off, and a failed Live Import loses writes made after it started
  • No disks on vSAN, encrypted disks cannot be imported, and vTPM state does not migrate
  • Windows VMs need VirtIO drivers first; remove VMware Tools before migrating; serial imports are recommended
PVE migration guide
Migration tasksAgentlessVMware → ZSvirt
  • erp-db-01esxi-07100%Completed
  • erp-app-02esxi-07100%Ready to cut over
  • crm-web-01esxi-0364%Delta sync
  • crm-web-02esxi-0331%Delta sync
  • bi-report-01esxi-110%Queued
Feature illustration

Automation, security, backup, and support

Community capabilities and commercial support are described separately.

Automation

ZSvirt
2,000+ REST/OpenAPI endpoints, a native Terraform provider, Go/Python/Java SDKs
Proxmox VE
REST API; a widely used community Terraform provider, no official one

Security

ZSvirt
Secure Boot, vTPM 2.0, VM encryption, security-group micro-segmentation, immutable audit logs; IP spoofing protection is one switch
Proxmox VE
Secure Boot (OVMF), TPM state, datacenter/node/VM firewalls and SDN; IP spoofing protection needs all three firewall levels enabled

Backup

ZSvirt
Built-in backup module with retention policies; works with Veeam, Commvault, Veritas
Proxmox VE
vzdump and Proxmox Backup Server; broad third-party support (Veeam, Commvault, NAKIVO)

Support

ZSvirt
GitHub and Discord community; commercial edition for vendor support
Proxmox VE
Large community forum; subscription tickets in European business hours, Standard and Premium moving to 24/7 during 2026

Which to choose, by scenario

There is no universal answer. It depends on scale, ecosystem, and the features you need.

Scenario
ZSvirt
Proxmox VE
Assessment
Homelab
Usable No-install Live Demo lowers the cost of trying
Strong Huge community, direct ISO download
PVE remains the default for learning.
Small to mid production (3 to 20 nodes)
Strong More enterprise scenarios packaged into the product
Strong Mature, with deep community experience
Both work; pick by how your team operates.
Large or multi-cluster (hundreds of hosts)
Strong Control plane built for this scale, flexible multi-cluster scheduling
Usable Multiple clusters aggregated with PDM
Past a few dozen nodes, control-plane differences show.
Large VMware migration
Strong ZMigrate, agentless
Usable Built-in import with vSAN, encryption, and vTPM limits
Either way, map hidden dependencies first.
Third-party backup
Strong Veeam, Commvault, Veritas
Strong Veeam, Commvault, NAKIVO
Both support commercial backup software.

Three closing judgments

  1. Not drop-in replacements

    Both are free, both run KVM, and both can host most VMware workloads. PVE has the richer community ecosystem, with much of its install base in homelabs and test labs; ZSvirt builds operations into the product and focuses on cluster management at scale and enterprise scenarios.

  2. Both mature, on different roads

    PVE follows the open-source community road and has been strengthening enterprise capabilities and services. ZSvirt began as a commercial enterprise product and went open source in August 2026, growing its ecosystem through a lower barrier, transparent technology, and community collaboration.

  3. Trying is cheap, so try

    ZSvirt offers a no-install Live Demo, a step-by-step quick start, and qcow2/OVA images that run on any machine with nested virtualization; PVE is one ISO. Running it yourself says more than any comparison, including this one.

Run it in your own environment

Download the ISO or a VM image, or open the Live Demo in your browser first.

Download ZSvirt Try the Live Demo
Quick start: deploy your first VM

Sources and notes

Versions compared: ZSvirt 1.0.0 and Proxmox VE 9.2. Written by the ZSvirt project. ZSvirt capabilities come from public documentation and published comparison tests; Proxmox VE details come from official documentation and other public material. Treat this as a starting point and test in your own environment before choosing.

View all 13 sources
  1. ZSvirt open-source release
  2. ZMigrate workflow walkthrough
  3. ZSvirt quick start: deploy your first VM
  4. ZSvirt documentation
  5. ZSvirt source code
  6. Proxmox VE FAQ
  7. Proxmox VE 9.2 release
  8. Official ARM64 support for Proxmox VE
  9. Cluster manager (node limits and corosync requirements)
  10. Migrate to Proxmox VE
  11. Proxmox Datacenter Manager roadmap
  12. qm manual (suspend and hibernate)
  13. Terraform provider for Proxmox VE