Introduction to Availability

Overview

Availability refers to the ability of a system, network, or process to be accessed and used by users when needed. In software architecture, availability is an important consideration because it ensures that the system is able to provide the desired level of service to users at all times.

There are several approaches to achieving high availability in software architecture, including:

Redundancy

Redundancy involves implementing multiple copies of a component or process in order to increase the reliability and availability of the system. If one copy of the component or process fails, the other copies can continue to function, allowing the system to continue operating.