A customer has 6.5 TB with 146 GB 15k disk drives on an IBM System Storage DS8700. They want to add 15 TB using 300 GB 15k disk drives. The customer is concerned about performance and wants to know if the DS8700 has the performance capability.  What is the appropriate way to  model the performance（）

• A、Disk Magic
• B、Capacity Magic
• C、test the workload at an IBM Benchmark Center
• D、test the solution with IBM Storage Performance Center