You can determine whether your virtual disk is in thick or thin format.

Procedure

  1. In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.
  2. Click the Hardware tab and select the appropriate hard disk in the Hardware list.

    The Disk Provisioning section on the right shows the type of your virtual disk.

  3. Click OK.

What to do next

If your virtual disk is in the thin format, you can inflate it to its full size.