Your public cloud environment is configured such that additional cloud storage is allocated to a virtual server when the used disk space on that server reaches more than 80 percent of disk capacity. Which term best describes this configuration?

The best term to describe the configuration where additional cloud storage is automatically allocated to a virtual server when the used disk space exceeds 80 percent of its capacity is automation.

In cloud computing, automation refers to the use of technology to perform tasks with minimal human intervention. This specific scenario illustrates an automated response to a condition (disk usage reaching 80 percent), which results in the provision of additional resources (storage) without requiring manual input from an administrator. This capability enhances operational efficiency by allowing systems to dynamically adjust and scale resources based on demand, thereby ensuring optimal performance and resource availability.

Elasticity refers to the cloud's ability to provision and de-provision resources as needed, but it does not specifically capture the ongoing automatic adjustment process. Self-service implies that users have direct control to provision resources without administrative help, but it doesn't highlight the automatic nature of the additional storage allocation. Disk latency is related to the speed at which disk operations are performed, which is not relevant to the allocation process being discussed. Thus, automation is the most appropriate term for this scenario.