This video gives a quick overview of the EMC Storage Plug-in for Oracle Enterprise Manager 12c - with a focus on its support for XtremIO.
The EMC Storage plug-in collects performance metrics from the storage system (VMAX, VNX, and XtremIO systems are supported) and presents that information inside Enterprise Manager in two types of views. You can look at the array-level metrics to get an overall picture of the entire storage system. What's new though is the ability to look at the performance of the specific storage volumes associated with a particular database. This helps the DBA get a better understanding of his database performance.