High-Availability vs Fault-Tolerance vs Disaster Recovery

High Availability (HA), Fault-Tolerance (FT) and Disaster Recover (DR) are three essential concepts to understand for every Solutions Architect.

Whats more important is understanding the differences between the three - specifically HA and FT.

Most technical people don't have a correct grasp .. this lesson aims to ensure that you do, before starting the main course content.