I shared your question with Ashish Garg, who manages the VNX curriculum, and he sent this response:

My recommendation for Steven is to take all the below courses. #1-3 are highly focused on VNX performance including workload characteristics, identifying performance issues and solutions, and very briefly touch upon many different tools. # 4 covers details on a specific “VNX Monitoring and Reporting” tool.  

1. VNX Unified Storage Performance Workshop
2. VNX Performance Monitoring and Analysis Tools
3. Storage Performance Fundamentals
4. VNX Monitoring and Reporting Architecture and Management (elearning)

I hope this helps you with your training goals.