Here are the steps to make a snapshot.
Snapshots capture the entire state of the virtual machine at
the time you take the snapshot. You can take a snapshot when a virtual machine is
powered on, powered off, or suspended. If you are suspending a virtual machine,
wait until the suspend operation finishes before you take a snapshot.
Enter Virtual server name or ip address, then enter the
credentials to connect to Vsphere client.
In Virtual Machines, find virtual server name, right-click on it. Go to Snapshot > Take Snapshot
When you click on Take Snapshot. Fill out a name, and
description, and UNCHECK “Snapshot the virtual machine’s memory”.
Adding a date and time or a description, for example,
"Snapshot before applying XYZ patch," can help you determine which
snapshot to restore or delete.
This will create a snapshot of the virtual machine.
After you take the snapshot, you can view its status in the Recent
Tasks field at the bottom of the vSphere Client.