The LPIC-3 Exam 306 focuses on High Availability and Storage Clusters, representing the highest level of professional, distribution-neutral Linux certification within the industry. It's designed for enterprise-level Linux professionals to demonstrate their expertise in Linux systems administration with an emphasis on high availability systems and storage. Here's a detailed overview of the exam:

The exam objectives are comprehensive, covering topics such as High Availability Cluster Management, High Availability Cluster Storage, and High Availability Distributed Storage, among others. Here are some of the key areas:

• High Availability Concepts and Theory

• Load Balanced Clusters

• Failover Clusters

• DRBD (Distributed Replicated Block Device)

• Cluster Storage Access

• Clustered File Systems

• GlusterFS Storage Clusters

Each topic area has specific objectives and subtopics, with detailed requirements for candidates to understand and demonstrate their knowledge in managing and configuring various aspects of high availability and storage solutions in Linux environments​.