You Are Sizing a Storage System for a Response-Sensitive Database

You are sizing a storage system for a response-sensitive database application in a VMware environment. Which two statements are true in this scenario? (Choose two.)

A) The cache hit percentage is determined primarily by the amount of cache provided by the storage system.
B) The peak load requirements of the database and filesystem is a key factor in determining the resources required to meet response time requirements.
C) The server virtualization will change the I/O profile of the application as viewed by the storage.
D) Sizing estimations for a database workload should be based on a steady state and then an extra 10% resources for headroom should be added.