High Availability in Critical Infrastructure: Lessons from the Berlin Power Plant Outage
The recent fire at a Berlin power plant has dramatically illustrated how vulnerable our energy infrastructure can be. Thousands of households were suddenly without power, hospitals had to switch to emergency generators, and critical infrastructure facilities faced the challenge of maintaining their operations. This event has triggered an important discussion: municipal utilities and operators of critical infrastructure are currently intensively reviewing the high availability and fail-safety of their systems.
While many companies are only now beginning to address this topic, Flux Master already offers a proven solution for highly available control systems today – with all the advantages of modern automation technology.
Why High Availability is Essential for Critical Infrastructure
Critical infrastructures such as water and energy supply, hospitals, traffic control systems, or production facilities cannot afford to fail. A shutdown not only has economic consequences but can endanger human lives in the worst case. The requirements for modern control systems are therefore clear:
- Redundancy at all levels: Every critical component must be present multiple times
- Automatic fault tolerance: The system must autonomously detect and compensate for failures
- Seamless failover: Operations must not be interrupted when a component fails
- Continuous monitoring: Potential problems must be detected early
- Rapid recovery: After a failure, the system must be fully operational again quickly
The Challenge of Traditional Solutions
Conventional automation systems are often not designed for true high availability. Many solutions offer redundancy at the hardware level but fail at the software implementation. Typical problems include:
Complex Configuration: Setting up redundant systems requires deep specialized knowledge and is error-prone. Often, several days or weeks of engineering effort are necessary to configure redundancy correctly.
Incomplete Redundancy: Many systems offer redundancy for the controller but forget critical components such as databases, visualizations, or communication interfaces. A single point of failure is enough to bring down the entire system.
No Automatic Synchronization: With classic solutions, both systems must be configured identically manually. Changes must be made twice, which is error-prone and increases maintenance costs.
Long Switchover Times: Even with existing redundancy, switching to the backup system often takes several seconds or even minutes – an eternity for critical processes.
Flux Master: High Availability by Design
Flux Master was developed from the ground up with a focus on high availability. Instead of treating redundancy as an afterthought, it is an integral part of the system architecture. This leads to decisive advantages:
Automatic Cluster Formation
Flux Master instances automatically recognize each other on the network and form a highly available cluster without manual configuration. Synchronization occurs automatically in real-time – configuration changes, program updates, or database entries are immediately replicated to all cluster nodes. This eliminates human error and drastically reduces engineering effort.
Complete System Redundancy
Unlike many other solutions, Flux Master offers not only redundant controllers but also:
- Redundant Databases: All process and historical data are automatically replicated across multiple nodes
- Redundant Visualizations: Web interfaces and HMI applications remain available even if a server fails
- Redundant Communication: All fieldbus and protocol connections are mirrored
- Redundant Edge Computing Functions: Data processing and AI algorithms run in parallel on multiple instances
Sub-Second Failover
Flux Master continuously monitors the status of all cluster nodes via a high-performance heartbeat mechanism. If a node fails, the system automatically fails over to a functioning node within milliseconds. This switch is invisible to the user – no restarts, no connection drops, no data loss.
Shared Hardware Connection
A key advantage: both redundant instances use the same EtherCAT IO system. This means the connection to sensors, actuators, and field devices remains intact even if the master instance fails. The failover time is limited to pure software switching – hardware communication continues without interruption.
Investment in the Future
The Berlin power plant outage is a warning but also an opportunity. Companies and authorities that now invest in highly available control systems not only protect themselves against future failures but also position themselves as reliable partners for their customers and citizens.
Flux Master makes high availability affordable and easy to implement. While others are still thinking about redundancy concepts, forward-thinking operators are already using a proven solution that combines high availability, cybersecurity, and modern cloud technology.
Conclusion: Be Prepared Instead of Having to React
The time for reactive action in automation technology is over. Operators of critical infrastructure must act proactively and design their systems for high availability before a failure occurs. Flux Master offers exactly the solution needed for this: mature, tested, and proven in productive use.
While other vendors offer complex and expensive solutions that require months-long implementation projects, Flux Master can be put into operation within a few days. Automatic cluster formation and complete redundancy of all system components make it the first choice for companies that cannot compromise on availability.
ootb automation GmbH is happy to support you in the evaluation and implementation of highly available automation solutions with Flux Master. Our expert team advises you on architecture concepts, conducts feasibility studies, and accompanies you from planning to successful commissioning.
Contact us today to learn how we can take the availability of your critical systems to a new level. Because the best time for high availability is always: now – before the next outage comes.