What is a feature in Windows Server that allows the migration of workloads between source and target clusters?

The feature that allows the migration of workloads between source and target clusters is Failover. In a Windows Server environment, Failover Clustering is designed to enhance the availability and reliability of applications and services by enabling the clustering of multiple servers, or nodes, which can effectively share workloads.

When a node in the cluster fails or needs to be taken offline for maintenance, Failover allows applications and resources to be automatically transferred to another active node within the cluster. This seamless switching ensures minimal downtime and maintains service availability, which is essential for businesses relying heavily on constant uptime.

While load balancing, resource allocation, and virtualization are important components of managing server workloads, they do not specifically address the migration of workloads between clusters as directly and effectively as the failover mechanism does. Load balancing primarily distributes incoming traffic across multiple servers to optimize resource use and avoid overload, resource allocation involves assigning available resources to applications, and virtualization enables running multiple operating systems on a single physical machine, but does not inherently focus on cluster migration capabilities.