https://blog.5glinux.com/tags/high-availability/Recent content in High-Availability on 5glinuxhttps://blog.5glinux.com/images/og-default.jpghttps://blog.5glinux.com/images/og-default.jpgHugoen-usTue, 03 Nov 2026 20:00:00 +0000https://blog.5glinux.com/posts/stretched-suse-virtualization-cluster-witness-latency/Tue, 03 Nov 2026 20:00:00 +0000https://blog.5glinux.com/posts/stretched-suse-virtualization-cluster-witness-latency/A stretched SUSE Virtualization cluster needs a third site for etcd quorum. I put 25 ms each way between that site and the other two nodes with tc netem and measured the control plane in four scenarios: normal operation, witness as leader, a data center lost, and the worst case with a VM create.