Building Hypervisor Infrastructure with Proxmox and Ceph

Author: Rajendra Acharya

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Why Proxmox and Ceph?

Proxmox Virtual Environment (PVE) is a powerful, open-source platform for managing virtual machines and containers. Combined with Ceph, a distributed storage system, you can achieve:

High Availability (HA): Minimized downtime with automatic failover.

Scalability: Seamless expansion of compute and storage resources.

Cost-Effectiveness: Open-source and community-driven solutions.

This combination is ideal for enterprises, startups, and enthusiasts looking to build a production-grade hypervisor infrastructure.

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Setting Up Proxmox Infrastructure

Step 1: Install Proxmox VE

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Download ISO: Download the Proxmox VE ISO.

Install: Burn the ISO to a USB drive or use PXE boot, and install it on your server hardware.

Initial Configuration:

Set up the hostname, IP address, and root password.

Ensure proper network configuration for management.

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Step 2: Network Configuration

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Use a bonded interface for redundancy.

Create separate VLANs for:

Management traffic.

Ceph storage traffic.

VM data traffic

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Setting Up Ceph for Distributed Storage

Step 1: Prepare Proxmox Nodes

• Ensure at least three Proxmox nodes for a reliable Ceph cluster.


• Install additional disks on each node for Ceph’s OSDs (Object Storage Daemons).
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  Step 2: Install and Configure Ceph
  


• Enable Ceph:


• Navigate to Datacenter → Ceph in the Proxmox web interface.


• Initialize the Ceph cluster.
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• Deploy OSDs:


• Add the dedicated disks to the Ceph cluster via Ceph → OSD.
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• Setup Monitors (MONs):


• Add at least three monitor nodes for quorum and cluster reliability.
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• Configure Ceph Pools:


• Create pools for storage, defining redundancy settings like replication or erasure coding.
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  Integrating Ceph with Proxmox
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  Step 1: Add Ceph Storage to Proxmox


• Go to Datacenter → Storage, and add Ceph RBD as a new storage type.


• Test connectivity and ensure proper pool access.
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  Step 2: Migrate VM Storage
  


• Move VM disks to the Ceph RBD pool for centralized storage and HA.
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  High Availability and Maintenance
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  Configure HA in Proxmox
  


• Use HA Groups to define failover priorities.


• Ensure fencing devices or quorum settings are configured to avoid split-brain scenarios.
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  Regular Maintenance
  


• Monitor the health of the Ceph cluster (ceph status).


• Use the Proxmox dashboard to monitor and manage VM performance.
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  The Take-Away
  Building a hypervisor infrastructure with Proxmox and Ceph is a rewarding experience that blends the power of open-source tools with enterprise-grade features. While the initial setup requires thoughtful planning, the result is a resilient, scalable, and cost-effective environment.
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  Related Reading
  


• Proxmox VE Documentation


• Ceph Documentation


• Ceph Storage Basics


• Building a Hyper-Converged Infrastructure

By understanding and implementing these systems, you not only gain valuable experience but also the satisfaction of running an infrastructure that rivals commercial offerings in performance and reliability.