Database Resiliency - Replication and Disaster Recovery
Complete guide to database resiliency covering replication (master-slave, multi-master), backup strategies, and disaster recovery for system design interviews.
High Availability
Load Balancers Explained - Part 1
Complete guide to load balancers covering algorithms (round-robin, least connections), global vs local load balancing, stateful vs stateless approaches, and scaling strategies.
System Availability - Understanding Uptime and SLAs
Complete guide to system availability covering uptime calculations, SLA requirements, five nines availability, redundancy strategies, and high availability architecture.