What is the ability of a data center to continue operations during failures called?

The ability of a data center to continue operations during failures is referred to as resiliency. This term encompasses the data center's capability to withstand and recover from disruptions, whether they are due to hardware failures, power outages, or natural disasters. Resiliency involves numerous strategies and design considerations, such as redundancy, fault tolerance, and effective disaster recovery plans. The goal is to ensure that services remain uninterrupted and that the infrastructure can quickly adapt to and mitigate various types of failures.

While availability reflects the operational uptime and performance metrics of the data center, it doesn’t specifically denote the ability to handle failures. Dependability is a broader concept that includes availability, but it encompasses other qualities like reliability and maintainability. Redundancy refers to the presence of backup systems or components that help enhance resiliency, but it alone does not capture the overall ability to continue operations during failures. Thus, the term "resiliency" accurately conveys the concept of ongoing operation in the face of challenges and setbacks.