Proxmox 2 node cluster quorum, 4 days ago · Hi Proxmox team and community, In Brazil, a very common virtualization setup is a 2-host cluster with direct SAS storage connection via HBA cards (e. Jan 23, 2026 · This step-by-step process walks through how to create a 2-node Cluster in Proxmox by utilizing a third device for voting and quorum purposes! Jun 22, 2025 · Setting up a two-node Proxmox cluster A two-node Proxmox cluster is a special case: it cannot support native high availability (HA) without a third quorum vote. I currently have a 3 host cluster with shared storage (gluster). Corosync expects a majority to remain online in order Jul 13, 2025 · Running a Proxmox cluster 2 nodes? Learn how a QDevice helps prevent quorum loss — with setup guide and feedback from the r/Proxmox community. This architecture allows both hosts to share the same virtual LUNs from the SAS storage array/enclosure, enabling HA, live Feb 19, 2026 · Hi, I see that many people use shared storage (FC, iSCSI, NFS, etc. Mar 27, 2024 · In this tutorial, I will explain how to configure quorum with a Proxmox cluster composed of two servers. These nodes are not running Kubernetes, Mesos. Mar 18, 2024 · elk), and make metrics (success/fail, runtime duration) of this easily accessible. 6 days ago · with a 2 node cluster with quorum device and a shared storage such as Powerstore, does the quorum device need a connection to the Powerstore? Has anybody run a similar configuration what are the most common pitfalls of this type of configuration? Dec 5, 2025 · A two node Proxmox cluster behaves differently from larger topologies because it sits at the edge of what a quorum based system can tolerate. To allow the cluster to work with just one node, run this command: I have a question about cluster quorum (proxmox 4). ) with LVM (thin or thick) and no filesystem — just VM disks as logical volumes. some might be, but the maintenance operation is unrelated. anything you recommend ? Eran Zimbler and 2 others 3 reactions · 23 comments Anonymous participant Proxmox - Virtual Environment 1y · Public. How is data integrity guaranteed in this setup? I understand that only one node runs a VM at a time, but since the LUN is visible to all nodes That's Proxmox clustering, and in this video I'll show you exactly how to set it up. Learn the architecture of Proxmox 2-node clusters, how to properly configure a Corosync QDevice, and engineer true High Availability. 1 day ago · By default, this approach leads to a “cluster not ready - no quorum?” error and makes Proxmox completely unusable. Do the same for intra-cluster migration, to avoid issues like [0] for future new settings, with settings being unexpectedly ignored on the target, and in the case of qemu-server even relatively silently dropped (there are warnings in the target's system logs). Dec 15, 2025 · Stop split-brain failures. However, you can still build a resilient and practical storage setup depending on your budget and goals. g. I run 8 Proxmox nodes for my consulting business and personal homelab. , LSI/Avago HBAs).
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