What is the primary purpose of VMware vSAN?

The primary purpose of VMware vSAN is to allow the aggregation of local storage from multiple hosts. vSAN is a key component of VMware's hyper-converged infrastructure strategy, where it pools together the storage resources from various ESXi hosts in a cluster to create a single shared datastore. This storage can be used for virtual machines within the environment, simplifying the management and improving resource utilization.

By combining local storage from multiple hosts, vSAN enables features such as high performance, scalability, and high availability. This storage aggregation supports various configurations and allows for policy-based management of storage resources, thereby aligning storage performance with application requirements seamlessly. The functionality is particularly beneficial in virtualized environments, allowing for efficient workloads and responsive performance.

While other options may seem relevant to virtualization infrastructure, they do not accurately capture the core function of vSAN. For instance, while high-availability clustering and VM migration are essential functionalities in a fully virtualized environment, they are not the primary purpose of vSAN. Rather, those features enhance the overall configuration but are not specific to the aggregation of local storage, which is indeed the essence of what vSAN accomplishes.