Taking snapshots using Microsoft Hyper-V

You must configure LUNs, with the same size as the source LUNs, as snapshot targets in the free storage pool on the storage system.

Before you take a snapshot of the volume on the guest OS, issue the following command to see whether the configuration is correct:
ibmvcfg testsnapshot X:

The procedures to take, delete, mask, resynchronize, and import snapshots are the same as the procedures for the physical host. The provider attaches the target LUNs to the physical host and then assigns it to the guest OS as a pass-through disk when taking or importing a snapshot. When you delete or mask a snapshot, the IBM® VSS hardware provider removes the target LUN from the guest OS before detaching it from the physical host.

See Snapshot principles when NPIV is used for information on these tasks.