A note to my previous response with directions to download latest version of Storage Manager.
The Storage Manager version (latest is 11.53.0X00.0008) must be greater than or equal to the controller firmware installed on the array for Storage Manager to be able to manage the array.
If the E2812 that was mentioned in the original post has newer controller firmware installed, such as 11.60.x, then the latest Storage Manager will not be able to manage the E2812. In that case E-Series Unified Manager can be installed to manage multiple E-Series arrays.
E-Series Unified Manager can be downloaded from support.netapp.com and following the instructions I gave for downloading Storage Manager. The difference being instead of clicking on “E-Series SANtricity Storage Manager” link under the “E” section, click on the “E-Series SANtricity Unified Manager” link.
TME Lab Contractor