Preparing to take a snapshot

Before taking a snapshot for the volume on the guest OS, you must check the configuration.

Issue the following command to see if the configuration is correct:
ibmvcfg testsnapshot X:
Tip: 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 very similar to when you take a snapshot by using Hyper-V. However after configuring NPIV with Hyper-V, when you take a snapshot, 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.