Architecture pattern
The architecture pattern
A repeatable RHEL 9 architecture for multi-vendor IEC 61850 protection and automation workloads, following the vPAC Alliance's software-defined substation vision. It scales from a single node (small or secondary substations, retrofits, labs) to a 3-node high-availability cluster, and explains the reasoning behind each choice.
Reference architecture · updated 2026-09-11
Ansible
The automation that builds it
Deploys a 3-node RHEL cluster for running protection software as virtual machines: KVM virtualization, Ceph storage, Pacemaker high availability and PTP time sync. A local web form writes the site configuration, including the encrypted password vault, so nobody hand-edits YAML. Works connected or fully air-gapped.
Quickstart · Architecture · updated 2026-09-22