Which feature allows for automated migration of VMs based on resource needs?

The feature that allows for the automated migration of virtual machines (VMs) based on resource needs is Distributed Resource Scheduler (DRS). DRS intelligently manages resources among various hosts within a cluster, ensuring that VMs are placed on the most appropriate hosts according to their real-time resource requirements, such as CPU and memory. By monitoring the overall resource utilization of the cluster, DRS can automatically migrate VMs across hosts using VMotion to optimize performance and balance workloads without requiring manual intervention. This proactive management helps to maximize resource efficiency and maintain performance levels for all VMs.

In contrast, VMotion is primarily focused on the live migration of VMs from one host to another without downtime but does not automate the process based on resource needs. Storage DRS, while beneficial for managing storage resources, specifically deals with the distribution of VM disks across storage systems rather than the overall VM placement concerning compute resources. High Availability provides fast recovery from host failures by restarting VMs on other hosts but does not manage daily resource needs or workload balancing.