Preparing to take a snapshot

Before you take a snapshot of the volume on the guest OS, you must check the configuration.

Issue the following command to see whether the configuration is correct:

ibmvcfg testsnapshot X:

Note: The command can support one or more drive letters or mount points. In the example command, X: is the driver letter or mount point to take the snapshot.

The procedure for taking a snapshot is similar to when you take a snapshot by using Hyper-V. However, when you take a snapshot after you configure NPIV with Hyper-V, the following events happen:

The provider automatically attaches the target LUNs to the host via a virtual port
The provider assigns the LUN to the guest OS as a pass-through disk when taking or importing a snapshot

When deleting or masking a snapshot, the IBM® VSS hardware provider removes the target LUN from the guest OS before detaching it from the physical host.