The ability of a service to be continuously available by minimizing the downtime to the lowest amount possible
Uptime: Time system remains online over a given period. Expressed as a percentage
Load Balancing
Process of distributing workloads across multiple computing resources
Load Balancer
Clustering
Use of multiple computers, multiple storage devices and redundant network connections that all work together as a single system to provide high levels of availability, reliability and scalability
Redundacy
Duplication of critical components or functions of a system with the intention of increasing the reliability of the system
Multiple Power Supplies, Network Connections, Servers, Software Services (Primary & Secondary service) and Service Provider (Multi-cloud)