#quorum
Every post tagged quorum.
Tuning Corosync Link Priority and Token Timeouts for Proxmox VE Cluster Resilience
Proxmox VE corosync redundancy only works if knet actually prefers the right link. Here's how to set link priority correctly, read corosync-cfgtool output, and avoid tuning the token timeout blind.
Setting Up a Corosync QDevice for Two-Node Proxmox VE Cluster Quorum
A two-node Proxmox VE cluster loses quorum the moment one node reboots. Here's why the vote math breaks down and how to fix it permanently with an external corosync QDevice as a tie-breaker.
What Is a Proxmox Cluster? (And Do You Actually Need One?)
Clustering sounds like something only data centers need, but it's really just several Proxmox nodes agreeing to share one view. Here's what Corosync and quorum actually mean, and when you genuinely need a cluster versus when you don't.
Preventing Split-Brain in Two-Node Proxmox VE Clusters with a Corosync QDevice
How to deploy a Corosync QDevice so a two-node Proxmox VE cluster keeps quorum and High Availability working through a single node failure.