Overview

DRBD Reactor is an event-based management framework designed specifically for DRBD resources. It monitors the state of DRBD devices and takes predefined actions in response to state changes. DRBD Reactor is structured hierarchically into two parts: a core and plug-ins. The core listens for certain conditions, while plug-ins perform operations when specified conditions are met. This framework is intended to replace or complement traditional resource management tools like Pacemaker, especially in scenarios where a lighter, more focused tool is preferred.

Features

• Simplified Resource Management: Provides an alternative to traditional cluster management solutions like Pacemaker, offering simpler configuration and operation for setups focused on DRBD.
• Lightweight and Efficient: Unlike full-fledged cluster management systems, DRBD Reactor is lightweight and designed specifically for DRBD.
• Event-Driven Automation: Responds to events like resource promotion, demotion, connection establishment, or disconnection, and triggers predefined actions.
• Integration with systemd: Tightly integrated with systemd, making it easy to use on modern Linux distributions.
• Customizable Actions: Users can define custom handlers or scripts for specific events, enabling fine-grained control over how the system reacts to changes.
• Resource Health Monitoring: Continuously monitors the health of DRBD resources and ensures they are in the desired state.

Benefits

• Enhanced Management: Simplifies the management of DRBD resources, reducing the complexity associated with traditional cluster management tools.
• Efficiency: Lightweight design ensures efficient operation without the overhead of full-fledged cluster management systems.
• Automation: Automates responses to state changes, improving the reliability and performance of DRBD setups.
• Customization: Allows users to define custom actions for specific events, providing flexibility in managing DRBD resources.
• Integration: Seamless integration with systemd enhances usability on modern Linux distributions.
• Monitoring: Continuous health monitoring ensures DRBD resources remain in optimal condition.