When you need to save storage space, you can create a virtual disk in thin provisioned format. The thin provisioned virtual disk starts small and grows as more disk space is required.
Before you begin
You can create thin disks only on the datastores that support disk-level thin provisioning.
About this task
This procedure assumes that you are creating a typical or custom virtual machine using the New Virtual Machine wizard.
A virtual disk in thin format is created.
What to do next
If you created a virtual disk in the thin format, you can later inflate it to its full size.