If I migrate (v-motion) a Windows Server VM across a cluster of physical machines in a given month, how can I report it using Windows Server Standard?

Windows and Core Infrastructure Suite (CIS) Standard licensing is linked to the physical server and not the VM. Hence if a VM is migrated across 3 servers each with 2 physical processors (CPU) within a reporting month, then 6 x Windows Standard Processor License (or now, 6 x 8 = 48 Core licenses of Standard) would need to be reported for that VM.

 This can change the justification for reporting Datacenter editions or the release Cloud Platform Suite.