In vSphere Client, select the Dell Management Plug-in virtual machine and click the Console tab.
Select Reset this Virtual Appliance to Factory Settings and press <ENTER>.
The following notice is displayed:
This operation is completely Irreversible if you continue you will completely reset *this* appliance to its original settings. All changes you have made to this appliance will be Lost. Are you sure you wish to Reset this Appliance to Factory Settings?
Enter y to reset or n to cancel. The appliance is reset to the original factory settings.