The following is an excellent post written by Paul Martin (@rawstorage) which details the eMGMT feature available on VMAX All Flash and VMAX3 Systems:
Two key questions that have come up recently and is addressed in Paul’s post:
What can I do with eManagement?
eManagement is a fully functional install of Unisphere for VMAX, you can do everything that is possible with Unisphere. So you have full control over array management, performance statistics, reports, Database Storage Analyzer and a full REST API.
So what happens if I need command line access for any reason, is that still possible? The answer is yes it’s still possible you can always have an external host with solutions enabler installed and gatekeepers mapped if this is something you will require on an ongoing basis. You can also configure client server access to connect and utilize the solutions enabler instance on the eManagment server. I’ll take you through that in the next section.
How do I update eManagment software running on my VMAX array?
The good news here is you don’t have to, when a new release of HYPERMAX OS (the VMAX operating environment) is installed the container running the eManagement software is updated for you automatically. One less moving part to have to worry about, and you will automatically have new features in the microcode available to you through the latest user interface..
In addition ViPR support for eMGMT is targeted for Q3 2016.