A customer has an EMC Symmetrix DMX3000 that is at the end of lease. The environment consists of IBM System p， IBM System i， and IBM System z. The customer is evaluating EMC，   HDS， and IBM storage as possible replacements. They are interested in comparing the performance of all three disk subsystems.  Which tool compares performance（）

• A、Capacity Magic
• B、eConfig
• C、TPC for Disk
• D、Disk Magic