×Run Proxmox on OVHcloud
Single node & HA on dedicated servers
Single node or HA cluster on OVH Bare Metal – with vRack network design, operations & support from one source.
Why Proxmox on OVHcloud?
Enterprise virtualization without vendor lock-in on OVHcloud Bare Metal – with vRack for professional network design.
Cost
Proxmox is open source. OVH Bare Metal at competitive prices. No per-socket licenses like VMware.
vRack
Private Layer-2 network connects all servers like in the same rack – including public cloud integration.
EU & GDPR
OVHcloud data centers in the EU. French company, European data sovereignty.
Performance
Dedicated hardware = consistent performance. Wide server range from entry to high-end.
Typical Use Cases
Single Node Setup – Best Practice
Proxmox works as single node or as cluster. For many SMB setups, a properly operated single-node system is sufficient – what matters is backups, monitoring and documented updates.
When Single Node Makes Sense
Budget focus, simpler management, manageable workloads
Single Node ≠ Insecure
Professionally operated with backups, restore tests and monitoring
Upgrade Path to HA
Can be expanded to cluster anytime when requirements grow
Single Node vs HA Cluster
Single Node
- • Simple setup & management
- • Lower costs
- • Backup/restore as DR strategy
HA Cluster (3+ Nodes)
- • Automatic failover
- • Live migration without downtime
- • Maintenance during operation
Architecture Options
Which architecture fits your requirements? We help with the decision.
Option 1: Single Node Proxmox on OVH Dedicated
One dedicated server for smaller workloads or cost focus. Full performance, simple setup, clear responsibility.
- Simple setup & management
- Full dedicated hardware
- Predictable monthly costs
- Ideal for SMB & dev/test
Option 2: Proxmox Cluster on OVH Bare Metal (HA)
3+ nodes for true high availability. Automatic failover, live migration, maximum resilience.
- True HA failover
- Live migration without downtime
- Maintenance without outage
- Enterprise-ready
Option 3: Hybrid – OVH Public Cloud + Dedicated
Management/bastion in OVH Public Cloud, workloads on dedicated servers. vRack connects both worlds.
- Flexible access
- Private L2 via vRack
- Jump server in cloud
- Workloads on dedicated
Network Design with vRack
OVHcloud vRack is the heart of your private network – we configure it optimally for Proxmox.
vRack (Private Layer-2)
OVH's isolated private network connects dedicated servers and public cloud like in the same rack. Ideal for cluster communication and storage traffic.
Connect Public Cloud + Dedicated
vRack enables direct L2 connection between OVH Public Cloud instances and bare metal servers – without internet detour.
Separated Networks
Best practice: Management, cluster/Corosync and storage on separate VLANs for security and performance.
Best Practice: Separated Networks via vRack VLANs
Management
Web GUI, SSH, API access
Cluster/Corosync
Heartbeat, quorum, cluster sync
Storage (optional)
Ceph, NFS, iSCSI traffic
Cluster & High Availability
Proxmox Cluster Manager and HA Manager enable automatic failover on node failures. We configure this for you.
Cluster Setup
pvecm, naming concept, network requirements
HA Manager
Automatic failover of VMs and containers
Quorum & Split-Brain
3-node recommendation, QDevice for 2-node setups
Storage Design
ZFS (Lokal)
Fast, simple, ideal for local storage and single node. But: HA/live migration requires shared storage.
Recommended for single nodeCeph (Verteilt)
Shared storage, HA-friendly, self-healing. More complex, requires dedicated network via vRack.
Recommended for HA clustersBackup, Updates, Monitoring
Professional operations mean: automation, monitoring, documented processes.
Backup Strategy
- Proxmox Backup Server (PBS)
- Defined RPO/RTO
- Immutable & offsite backups
- Regular restore tests
Update Management
- Rolling updates
- Documented runbooks
- Coordinated maintenance windows
- Rollback plans
Monitoring & Alerting
- Host/VM/storage metrics
- Backup job monitoring
- Alerting on issues
- Capacity planning
Project Process
How we work – transparent and structured.
Assessment
Analysis of existing workloads, network, storage and requirements
Architecture & Sizing
Planning the optimal configuration for your requirements
Build
Setup of cluster/single node, vRack network, storage and backup
Test
Failover tests, restore tests, live migration validation
Migration
Cutover of existing workloads with minimal downtime
Operations & Support
Ongoing maintenance, monitoring and support as needed
Support & Operating Models
One-time Setup
We set up your Proxmox server/cluster, document everything and hand over to your team.
Co-Managed
Your team handles daily operations, we support with updates, troubleshooting and expansions.
Fully Managed
We handle complete operations: monitoring, updates, backups, support – you focus on your business.
Alternative Platforms
More Proxmox Pages
Frequently Asked Questions
Proxmox on OVHcloud – Answers to Your Questions
Basics
Yes – especially for smaller setups, Single Node on Bare Metal is very reasonable. What matters is backups, monitoring and an update runbook to keep operations stable.
For true HA with stable quorum, 3+ nodes is the standard. Two nodes only work with an additional quorum concept and are operationally more demanding.
Proxmox itself has no license cost; costs depend on bare metal sizing, storage concept and your operating model (setup vs managed). We calculate transparently via sizing + SLA + backup/monitoring.
You can run 2 nodes, but for quorum/HA you typically need an external quorum element (QDevice) or clear operational rules. We recommend 2 nodes more for "cluster management/live migration light" than for "true HA".
Network & vRack
vRack is OVHcloud's private Layer-2 network to privately connect dedicated servers and other OVH services. Perfect for cluster/storage communication without public internet.
Yes – OVH explicitly shows the configuration between Public Cloud and Dedicated via vRack. This is helpful if you have bastion/tools in Public Cloud but workloads on Bare Metal.
At minimum Management separated from Corosync/Cluster. If Ceph is added, you need your own storage network – at OVH typically achievable cleanly via vRack/VLAN design.
IP/VLAN plan is done "on the fly", MTU/segmentation not considered, and then cluster/storage runs over public IPs. We build the network plan first, then the cluster.
Storage
Single Node: usually ZFS. HA Cluster: Ceph can make sense if network/disks fit – otherwise "simpler" shared storage or ZFS+replication strategy is often more economical.
Yes, but only with proper design: dedicated storage network, enough SSD/NVMe, clear failure domain. If budget/network doesn't fit, we'd rather recommend a more robust, simpler-to-operate setup.
Installation & Setup
Provisioning Bare Metal → Proxmox installation → Network design (incl. vRack) → Storage → Backup/Monitoring. Important: Hostname/IP planning must be final beforehand (reluctant to change later in cluster).
Through 3+ nodes, clean Corosync network, stable latencies and clear maintenance processes. With 2 nodes you need additional quorum strategy.
Bastion/VPN instead of public GUI. Plus firewall rules, logging and defined emergency access.
Yes – many start as Single Node and expand later. What's important is setting clean standards from the start (naming, IP plan, backup, monitoring).
Operations & Migration
Single Node: Maintenance window. Cluster: node-by-node rolling update with tests.
Automated backups + regular restore tests. The restore test is the actual quality proof, not just "backup exists".
We plan the migration in phases: Inventory → Test import → Performance check → final cutover with rollback option. The biggest lever is almost always: decide storage/network cleanly beforehand.
Support
Yes – either as hour packages (troubleshooting/change) or as managed operations (SLA, monitoring, updates, backups).
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Our Proxmox Label
Managed Proxmox Support & Monitoring
OutaCloud offers professional Proxmox support and proactive monitoring for your OVH infrastructure.
Let's Talk About Your Idea
Whether a specific IT challenge or just an idea – we look forward to the exchange. In a brief conversation, we'll evaluate together if and how your project fits with WZ-IT.
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Timo Wevelsiep & Robin Zins
CEOs of WZ-IT