Hyper-V monitor virtual machine disk activity

Question

How can I get the number of bytes read from/written into the physical disk of the host system by Hyper-V virtual machines?

Answer 1

Of course, you can always use each hosted machine's own built-in performance monitoring, such as Perfmon for Windows clients.

However, the hosting Hyper-V server also exposes a ton of counters not only for its own OS, but also for each hosted machine. For more info, see articles here and here.