What issue can be resolved by using vSphere vMotion for migrating virtual machines?

Utilizing vSphere vMotion allows for the live migration of virtual machines (VMs) from one physical server to another within a vSphere environment without any downtime. This capability is particularly beneficial when upgrading hardware or performing maintenance on vSphere clusters. By seamlessly migrating VMs, organizations can ensure continuous service availability, thus preventing any disruptions to operations during these necessary upgrades and maintenance activities.

When a vSphere cluster requires an upgrade, vMotion allows administrators to move VMs off the node that needs upgrading to another host without impacting users or applications. This feature helps maintain high availability and operational efficiency, underscoring why the answer focusing on resolving upgrade issues without VM downtime is the most appropriate choice.

The other options do not accurately reflect issues that are addressed by vMotion. For example, vMotion cannot resolve mismatched VM file names with inventory names, nor can it rollback a VM state if there was a problem during patching. It also doesn't directly address the management of heavy storage traffic and latency, which typically involves different strategies focused on storage resource allocation rather than live migration of compute resources.