Hello LTParis,
Not sure if you are following the deployment guide for setting up your MD3220i. Here is a link to assist you just in case you weren’t using the guide. ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_powervault/powervault-md3220i_Deployment%20Guide_en-us.pdf
Please let us know if you have any other questions.