High availability architectures eliminate single points of failure and provide redundant components to ensure continuous access to services. Here’s how they contribute to availability:
Clustering and Failover: High availability architectures use clustering and failover mechanisms to ensure that services remain accessible even if one component fails. These mechanisms automatically redirect traffic to healthy components, minimizing downtime.
Replication: Replication ensures data availability by maintaining copies of data across multiple locations or servers. In the event of a failure, users can access data from alternative sources, ensuring uninterrupted service.