Fundamentals of Service Reliability and High Availability

In today's digital landscape, system downtime can lead to lost revenue and damaged user trust. This text-only course teaches you how to build, maintain, and scale highly available services that remain responsive even during unexpected traffic spikes or infrastructure failures. You will transition from understanding basic server setups to implementing robust, fault-tolerant architectures. What you'll learn: - Understand the core concepts of high availability, service-level objectives (SLOs), and fault tolerance - Configure load balancers to distribute traffic efficiently across multiple servers - Implement proactive health checks and modern observability patterns to detect issues before they impact users - Apply database replication and failover strategies to prevent data loss and maintain service continuity - Design graceful degradation strategies to keep critical system features online during partial outages This course begins with foundational definitions of reliability metrics and system architectures. You will then progress through step-by-step written explanations of scaling techniques, disaster recovery, and modern monitoring practices. This course is designed for beginner system administrators, aspiring DevOps engineers, and web developers looking to build more resilient applications. No prior experience with infrastructure design is required. Start learning how to eliminate single points of failure and keep your services continuously available today.