#clustering
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Proxmox VE vs VMware ESXi: Feature and Cost Comparison
How Proxmox VE and VMware vSphere compare on licensing, high availability, storage and VM migration, using both vendors' own published terms.
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Proxmox No Quorum Errors: Corosync Troubleshooting
Why a Proxmox node loses quorum, what a read-only /etc/pve means, how to read pvecm status, and the fixes for two-node clusters and timeouts.
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Proxmox VE Cluster Planning: Quorum, Storage, Network
How Proxmox VE clusters actually fit together: VMs versus LXC, storage that supports migration, corosync quorum, and the mistakes that cause outages.